Sindbad~EG File Manager
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Controls the conversation page in the message drawer.
*
* This function handles all of the user actions that the user can take
* when interacting with the conversation page.
*
* It maintains a view state which is a data representation of the view
* and only operates on that data.
*
* The view state is immutable and should never be modified directly. Instead
* all changes to the view state should be done using the StateManager which
* will generate a new version of the view state with the requested changes.
*
* After any changes to the view state the module will call the render function
* to ask the renderer to update the UI.
*
* General rules for this module:
* 1.) Never modify viewState directly. All changes should be via the StateManager.
* 2.) Call render() with the new state when you want to update the UI
* 3.) Never modify the UI directly in this module. This module is only concerned
* with the data in the view state.
*
* The general flow for a user interaction will be something like:
* User interaction: User clicks "confirm block" button to block the other user
* 1.) This module is hears the click
* 2.) This module sends a request to the server to block the user
* 3.) The server responds with the new user profile
* 4.) This module generates a new state using the StateManager with the updated
* user profile.
* 5.) This module asks the Patcher to generate a patch from the current state and
* the newly generated state. This patch tells the renderer what has changed
* between the states.
* 6.) This module gives the Renderer the generated patch. The renderer updates
* the UI with changes according to the patch.
*
* @module core_message/message_drawer_view_conversation
* @copyright 2018 Ryan Wyllie <ryan@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define(
[
'jquery',
'core/auto_rows',
'core/backoff_timer',
'core/custom_interaction_events',
'core/notification',
'core/pending',
'core/pubsub',
'core/str',
'core_message/message_repository',
'core_message/message_drawer_events',
'core_message/message_drawer_view_conversation_constants',
'core_message/message_drawer_view_conversation_patcher',
'core_message/message_drawer_view_conversation_renderer',
'core_message/message_drawer_view_conversation_state_manager',
'core_message/message_drawer_router',
'core_message/message_drawer_routes',
'core/emoji/auto_complete',
'core/emoji/picker'
],
function(
$,
AutoRows,
BackOffTimer,
CustomEvents,
Notification,
Pending,
PubSub,
Str,
Repository,
MessageDrawerEvents,
Constants,
Patcher,
Renderer,
StateManager,
MessageDrawerRouter,
MessageDrawerRoutes,
initialiseEmojiAutoComplete,
initialiseEmojiPicker
) {
// Contains a cache of all view states that have been loaded so far
// which saves us having to reload stuff with network requests when
// switching between conversations.
var stateCache = {};
// The current data representation of the view.
var viewState = null;
var loadedAllMessages = false;
var messagesOffset = 0;
var newMessagesPollTimer = null;
var isRendering = false;
var renderBuffer = [];
// If the UI is currently resetting.
var isResetting = true;
// If the UI is currently sending a message.
var isSendingMessage = false;
// If the UI is currently deleting a conversation.
var isDeletingConversationContent = false;
// A buffer of messages to send.
var sendMessageBuffer = [];
// These functions which will be generated when this module is
// first called. See generateRenderFunction for details.
var render = null;
// The list of renderers that have been registered to render
// this conversation. See generateRenderFunction for details.
var renderers = [];
var NEWEST_FIRST = Constants.NEWEST_MESSAGES_FIRST;
var LOAD_MESSAGE_LIMIT = Constants.LOAD_MESSAGE_LIMIT;
var MILLISECONDS_IN_SEC = Constants.MILLISECONDS_IN_SEC;
var SELECTORS = Constants.SELECTORS;
var CONVERSATION_TYPES = Constants.CONVERSATION_TYPES;
/**
* Get the other user userid.
*
* @return {Number} Userid.
*/
var getOtherUserId = function() {
if (!viewState || viewState.type == CONVERSATION_TYPES.PUBLIC) {
return null;
}
var loggedInUserId = viewState.loggedInUserId;
if (viewState.type == CONVERSATION_TYPES.SELF) {
// It's a self-conversation, so the other user is the one logged in.
return loggedInUserId;
}
var otherUserIds = Object.keys(viewState.members).filter(function(userId) {
return loggedInUserId != userId;
});
return otherUserIds.length ? otherUserIds[0] : null;
};
/**
* Search the cache to see if we've already loaded a private conversation
* with the given user id.
*
* @param {Number} userId The id of the other user.
* @return {Number|null} Conversation id.
*/
var getCachedPrivateConversationIdFromUserId = function(userId) {
return Object.keys(stateCache).reduce(function(carry, id) {
if (!carry) {
var state = stateCache[id].state;
if (state.type != CONVERSATION_TYPES.PUBLIC) {
if (userId in state.members) {
// We've found a cached conversation for this user!
carry = state.id;
}
}
}
return carry;
}, null);
};
/**
* Get profile info for logged in user.
*
* @param {Object} body Conversation body container element.
* @return {Object}
*/
var getLoggedInUserProfile = function(body) {
return {
id: parseInt(body.attr('data-user-id'), 10),
fullname: null,
profileimageurl: null,
profileimageurlsmall: null,
isonline: null,
showonlinestatus: null,
isblocked: null,
iscontact: null,
isdeleted: null,
canmessage: null,
canmessageevenifblocked: null,
requirescontact: null,
contactrequests: []
};
};
/**
* Get the messages offset value to load more messages.
*
* @return {Number}
*/
var getMessagesOffset = function() {
return messagesOffset;
};
/**
* Set the messages offset value for loading more messages.
*
* @param {Number} value The offset value
*/
var setMessagesOffset = function(value) {
messagesOffset = value;
stateCache[viewState.id].messagesOffset = value;
};
/**
* Check if all messages have been loaded.
*
* @return {Bool}
*/
var hasLoadedAllMessages = function() {
return loadedAllMessages;
};
/**
* Set whether all messages have been loaded or not.
*
* @param {Bool} value If all messages have been loaded.
*/
var setLoadedAllMessages = function(value) {
loadedAllMessages = value;
stateCache[viewState.id].loadedAllMessages = value;
};
/**
* Get the messages container element.
*
* @param {Object} body Conversation body container element.
* @return {Object} The messages container element.
*/
var getMessagesContainer = function(body) {
return body.find(SELECTORS.MESSAGES_CONTAINER);
};
/**
* Reformat the conversation for an event payload.
*
* @param {Object} state The view state.
* @return {Object} New formatted conversation.
*/
var formatConversationForEvent = function(state) {
return {
id: state.id,
name: state.name,
subname: state.subname,
imageUrl: state.imageUrl,
isFavourite: state.isFavourite,
isMuted: state.isMuted,
type: state.type,
totalMemberCount: state.totalMemberCount,
loggedInUserId: state.loggedInUserId,
messages: state.messages.map(function(message) {
return $.extend({}, message);
}),
members: Object.keys(state.members).map(function(id) {
var formattedMember = $.extend({}, state.members[id]);
formattedMember.contactrequests = state.members[id].contactrequests.map(function(request) {
return $.extend({}, request);
});
return formattedMember;
})
};
};
/**
* Load up an empty private conversation between the logged in user and the
* other user. Sets all of the conversation details based on the other user.
*
* A conversation isn't created until the user sends the first message.
*
* @param {Object} loggedInUserProfile The logged in user profile.
* @param {Number} otherUserId The other user id.
* @return {Object} Profile returned from repository.
*/
var loadEmptyPrivateConversation = function(loggedInUserProfile, otherUserId) {
var loggedInUserId = loggedInUserProfile.id;
// If the other user id is the same as the logged in user then this is a self
// conversation.
var conversationType = loggedInUserId == otherUserId ? CONVERSATION_TYPES.SELF : CONVERSATION_TYPES.PRIVATE;
var newState = StateManager.setLoadingMembers(viewState, true);
newState = StateManager.setLoadingMessages(newState, true);
render(newState);
return Repository.getMemberInfo(loggedInUserId, [otherUserId], true, true)
.then(function(profiles) {
if (profiles.length) {
return profiles[0];
} else {
throw new Error('Unable to load other user profile');
}
})
.then(function(profile) {
// If the conversation is a self conversation then the profile loaded is the
// logged in user so only add that to the members array.
var members = conversationType == CONVERSATION_TYPES.SELF ? [profile] : [profile, loggedInUserProfile];
var newState = StateManager.addMembers(viewState, members);
newState = StateManager.setLoadingMembers(newState, false);
newState = StateManager.setLoadingMessages(newState, false);
newState = StateManager.setName(newState, profile.fullname);
newState = StateManager.setType(newState, conversationType);
newState = StateManager.setImageUrl(newState, profile.profileimageurl);
newState = StateManager.setTotalMemberCount(newState, members.length);
render(newState);
return profile;
})
.catch(function(error) {
var newState = StateManager.setLoadingMembers(viewState, false);
render(newState);
Notification.exception(error);
});
};
/**
* Create a new state from a conversation object.
*
* @param {Object} conversation The conversation object.
* @param {Number} loggedInUserId The logged in user id.
* @return {Object} new state.
*/
var updateStateFromConversation = function(conversation, loggedInUserId) {
var otherUser = null;
if (conversation.type == CONVERSATION_TYPES.PRIVATE) {
// For private conversations, remove current logged in user from the members list to get the other user.
var otherUsers = conversation.members.filter(function(member) {
return member.id != loggedInUserId;
});
otherUser = otherUsers.length ? otherUsers[0] : null;
} else if (conversation.type == CONVERSATION_TYPES.SELF) {
// Self-conversations have only one member.
otherUser = conversation.members[0];
}
var name = conversation.name;
var imageUrl = conversation.imageurl;
if (conversation.type != CONVERSATION_TYPES.PUBLIC) {
name = name || otherUser ? otherUser.fullname : '';
imageUrl = imageUrl || otherUser ? otherUser.profileimageurl : '';
}
var newState = StateManager.addMembers(viewState, conversation.members);
newState = StateManager.setName(newState, name);
newState = StateManager.setSubname(newState, conversation.subname);
newState = StateManager.setType(newState, conversation.type);
newState = StateManager.setImageUrl(newState, imageUrl);
newState = StateManager.setTotalMemberCount(newState, conversation.membercount);
newState = StateManager.setIsFavourite(newState, conversation.isfavourite);
newState = StateManager.setIsMuted(newState, conversation.ismuted);
newState = StateManager.addMessages(newState, conversation.messages);
newState = StateManager.setCanDeleteMessagesForAllUsers(newState, conversation.candeletemessagesforallusers);
return newState;
};
/**
* Get the details for a conversation from the conversation id.
*
* @param {Number} conversationId The conversation id.
* @param {Object} loggedInUserProfile The logged in user profile.
* @param {Number} messageLimit The number of messages to include.
* @param {Number} messageOffset The number of messages to skip.
* @param {Bool} newestFirst Order messages newest first.
* @return {Object} Promise resolved when loaded.
*/
var loadNewConversation = function(
conversationId,
loggedInUserProfile,
messageLimit,
messageOffset,
newestFirst
) {
var loggedInUserId = loggedInUserProfile.id;
var newState = StateManager.setLoadingMembers(viewState, true);
newState = StateManager.setLoadingMessages(newState, true);
render(newState);
return Repository.getConversation(
loggedInUserId,
conversationId,
true,
true,
0,
0,
messageLimit + 1,
messageOffset,
newestFirst
)
.then(function(conversation) {
if (conversation.messages.length > messageLimit) {
conversation.messages = conversation.messages.slice(1);
} else {
setLoadedAllMessages(true);
}
setMessagesOffset(messageOffset + messageLimit);
return conversation;
})
.then(function(conversation) {
var hasLoggedInUser = conversation.members.filter(function(member) {
return member.id == loggedInUserProfile.id;
});
if (hasLoggedInUser.length < 1) {
conversation.members = conversation.members.concat([loggedInUserProfile]);
}
var newState = updateStateFromConversation(conversation, loggedInUserProfile.id);
newState = StateManager.setLoadingMembers(newState, false);
newState = StateManager.setLoadingMessages(newState, false);
return render(newState)
.then(function() {
return conversation;
});
})
.then(function() {
return markConversationAsRead(conversationId);
})
.catch(function(error) {
var newState = StateManager.setLoadingMembers(viewState, false);
newState = StateManager.setLoadingMessages(newState, false);
render(newState);
Notification.exception(error);
});
};
/**
* Get the details for a conversation from and existing conversation object.
*
* @param {Object} conversation The conversation object.
* @param {Object} loggedInUserProfile The logged in user profile.
* @param {Number} messageLimit The number of messages to include.
* @param {Bool} newestFirst Order messages newest first.
* @return {Object} Promise resolved when loaded.
*/
var loadExistingConversation = function(
conversation,
loggedInUserProfile,
messageLimit,
newestFirst
) {
var hasLoggedInUser = conversation.members.filter(function(member) {
return member.id == loggedInUserProfile.id;
});
if (hasLoggedInUser.length < 1) {
conversation.members = conversation.members.concat([loggedInUserProfile]);
}
var messageCount = conversation.messages.length;
var hasLoadedEnoughMessages = messageCount >= messageLimit;
var newState = updateStateFromConversation(conversation, loggedInUserProfile.id);
newState = StateManager.setLoadingMembers(newState, false);
newState = StateManager.setLoadingMessages(newState, !hasLoadedEnoughMessages);
var renderPromise = render(newState);
return renderPromise.then(function() {
if (!hasLoadedEnoughMessages) {
// We haven't got enough messages so let's load some more.
return loadMessages(conversation.id, messageLimit, messageCount, newestFirst, []);
} else {
// We've got enough messages. No need to load any more for now.
return {messages: conversation.messages};
}
})
.then(function() {
var messages = viewState.messages;
// Update the offset to reflect the number of messages we've loaded.
setMessagesOffset(messages.length);
markConversationAsRead(viewState.id);
return messages;
})
.catch(Notification.exception);
};
/**
* Load messages for this conversation and pass them to the renderer.
*
* @param {Number} conversationId Conversation id.
* @param {Number} limit Number of messages to load.
* @param {Number} offset Get messages from offset.
* @param {Bool} newestFirst Get newest messages first.
* @param {Array} ignoreList Ignore any messages with ids in this list.
* @param {Number|null} timeFrom Only get messages from this time onwards.
* @return {Promise} renderer promise.
*/
var loadMessages = function(conversationId, limit, offset, newestFirst, ignoreList, timeFrom) {
return Repository.getMessages(
viewState.loggedInUserId,
conversationId,
limit ? limit + 1 : limit,
offset,
newestFirst,
timeFrom
)
.then(function(result) {
// Prevent older requests from contaminating the current view.
if (result.id != viewState.id) {
result.messages = [];
// Purge old conversation cache to prevent messages lose.
if (result.id in stateCache) {
delete stateCache[result.id];
}
}
return result;
})
.then(function(result) {
if (result.messages.length && ignoreList.length) {
result.messages = result.messages.filter(function(message) {
// Skip any messages in our ignore list.
return ignoreList.indexOf(parseInt(message.id, 10)) < 0;
});
}
return result;
})
.then(function(result) {
if (!limit) {
return result;
} else if (result.messages.length > limit) {
// Ignore the last result which was just to test if there are more
// to load.
result.messages = result.messages.slice(0, -1);
} else {
setLoadedAllMessages(true);
}
return result;
})
.then(function(result) {
var membersToAdd = result.members.filter(function(member) {
return !(member.id in viewState.members);
});
var newState = StateManager.addMembers(viewState, membersToAdd);
newState = StateManager.addMessages(newState, result.messages);
newState = StateManager.setLoadingMessages(newState, false);
return render(newState)
.then(function() {
return result;
});
})
.catch(function(error) {
var newState = StateManager.setLoadingMessages(viewState, false);
render(newState);
// Re-throw the error for other error handlers.
throw error;
});
};
/**
* Create a callback function for getting new messages for this conversation.
*
* @param {Number} conversationId Conversation id.
* @param {Bool} newestFirst Show newest messages first
* @return {Function} Callback function that returns a renderer promise.
*/
var getLoadNewMessagesCallback = function(conversationId, newestFirst) {
return function() {
var messages = viewState.messages;
var mostRecentMessage = messages.length ? messages[messages.length - 1] : null;
var lastTimeCreated = mostRecentMessage ? mostRecentMessage.timeCreated : null;
if (lastTimeCreated && !isResetting && !isSendingMessage && !isDeletingConversationContent) {
// There may be multiple messages with the same time created value since
// the accuracy is only down to the second. The server will include these
// messages in the result (since it does a >= comparison on time from) so
// we need to filter them back out of the result so that we're left only
// with the new messages.
var ignoreMessageIds = [];
for (var i = messages.length - 1; i >= 0; i--) {
var message = messages[i];
if (message.timeCreated === lastTimeCreated) {
ignoreMessageIds.push(message.id);
} else {
// Since the messages are ordered in ascending order of time created
// we can break as soon as we hit a message with a different time created
// because we know all other messages will have lower values.
break;
}
}
return loadMessages(
conversationId,
0,
0,
newestFirst,
ignoreMessageIds,
lastTimeCreated
)
.then(function(result) {
if (result.messages.length) {
// If we found some results then restart the polling timer
// because the other user might be sending messages.
newMessagesPollTimer.restart();
// We've also got a new last message so publish that for other
// components to update.
var conversation = formatConversationForEvent(viewState);
PubSub.publish(MessageDrawerEvents.CONVERSATION_NEW_LAST_MESSAGE, conversation);
return markConversationAsRead(conversationId);
} else {
return result;
}
});
}
return $.Deferred().resolve().promise();
};
};
/**
* Mark a conversation as read.
*
* @param {Number} conversationId The conversation id.
* @return {Promise} The renderer promise.
*/
var markConversationAsRead = function(conversationId) {
var loggedInUserId = viewState.loggedInUserId;
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:markConversationAsRead');
return Repository.markAllConversationMessagesAsRead(loggedInUserId, conversationId)
.then(function() {
var newState = StateManager.markMessagesAsRead(viewState, viewState.messages);
PubSub.publish(MessageDrawerEvents.CONVERSATION_READ, conversationId);
return render(newState);
})
.then(function(result) {
pendingPromise.resolve();
return result;
});
};
/**
* Tell the statemanager there is request to block a user and run the renderer
* to show the block user dialogue.
*
* @param {Number} userId User id.
*/
var requestBlockUser = function(userId) {
cancelRequest(userId);
var newState = StateManager.addPendingBlockUsersById(viewState, [userId]);
render(newState);
};
/**
* Send the repository a request to block a user, update the statemanager and publish
* a contact has been blocked.
*
* @param {Number} userId User id of user to block.
* @return {Promise} Renderer promise.
*/
var blockUser = function(userId) {
var newState = StateManager.setLoadingConfirmAction(viewState, true);
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:blockUser');
render(newState);
return Repository.blockUser(viewState.loggedInUserId, userId)
.then(function(profile) {
var newState = StateManager.addMembers(viewState, [profile]);
newState = StateManager.removePendingBlockUsersById(newState, [userId]);
newState = StateManager.setLoadingConfirmAction(newState, false);
PubSub.publish(MessageDrawerEvents.CONTACT_BLOCKED, userId);
return render(newState);
})
.then(function(result) {
pendingPromise.resolve();
return result;
});
};
/**
* Tell the statemanager there is a request to unblock a user and run the renderer
* to show the unblock user dialogue.
*
* @param {Number} userId User id of user to unblock.
*/
var requestUnblockUser = function(userId) {
cancelRequest(userId);
var newState = StateManager.addPendingUnblockUsersById(viewState, [userId]);
render(newState);
};
/**
* Send the repository a request to unblock a user, update the statemanager and publish
* a contact has been unblocked.
*
* @param {Number} userId User id of user to unblock.
* @return {Promise} Renderer promise.
*/
var unblockUser = function(userId) {
var newState = StateManager.setLoadingConfirmAction(viewState, true);
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:unblockUser');
render(newState);
return Repository.unblockUser(viewState.loggedInUserId, userId)
.then(function(profile) {
var newState = StateManager.addMembers(viewState, [profile]);
newState = StateManager.removePendingUnblockUsersById(newState, [userId]);
newState = StateManager.setLoadingConfirmAction(newState, false);
PubSub.publish(MessageDrawerEvents.CONTACT_UNBLOCKED, userId);
return render(newState);
})
.then(function(result) {
pendingPromise.resolve();
return result;
});
};
/**
* Tell the statemanager there is a request to remove a user from the contact list
* and run the renderer to show the remove user from contacts dialogue.
*
* @param {Number} userId User id of user to remove from contacts.
*/
var requestRemoveContact = function(userId) {
cancelRequest(userId);
var newState = StateManager.addPendingRemoveContactsById(viewState, [userId]);
render(newState);
};
/**
* Send the repository a request to remove a user from the contacts list. update the statemanager
* and publish a contact has been removed.
*
* @param {Number} userId User id of user to remove from contacts.
* @return {Promise} Renderer promise.
*/
var removeContact = function(userId) {
var newState = StateManager.setLoadingConfirmAction(viewState, true);
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:removeContact');
render(newState);
return Repository.deleteContacts(viewState.loggedInUserId, [userId])
.then(function(profiles) {
var newState = StateManager.addMembers(viewState, profiles);
newState = StateManager.removePendingRemoveContactsById(newState, [userId]);
newState = StateManager.setLoadingConfirmAction(newState, false);
PubSub.publish(MessageDrawerEvents.CONTACT_REMOVED, userId);
return render(newState);
})
.then(function(result) {
pendingPromise.resolve();
return result;
});
};
/**
* Tell the statemanager there is a request to add a user to the contact list
* and run the renderer to show the add user to contacts dialogue.
*
* @param {Number} userId User id of user to add to contacts.
*/
var requestAddContact = function(userId) {
cancelRequest(userId);
var newState = StateManager.addPendingAddContactsById(viewState, [userId]);
render(newState);
};
/**
* Send the repository a request to add a user to the contacts list. update the statemanager
* and publish a contact has been added.
*
* @param {Number} userId User id of user to add to contacts.
* @return {Promise} Renderer promise.
*/
var addContact = function(userId) {
var newState = StateManager.setLoadingConfirmAction(viewState, true);
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:addContactRequests');
render(newState);
return Repository.createContactRequest(viewState.loggedInUserId, userId)
.then(function(response) {
if (!response.request) {
throw new Error(response.warnings[0].message);
}
return response.request;
})
.then(function(request) {
var newState = StateManager.removePendingAddContactsById(viewState, [userId]);
newState = StateManager.addContactRequests(newState, [request]);
newState = StateManager.setLoadingConfirmAction(newState, false);
return render(newState);
})
.then(function(result) {
pendingPromise.resolve();
return result;
});
};
/**
* Set the current conversation as a favourite conversation.
*
* @return {Promise} Renderer promise.
*/
var setFavourite = function() {
var userId = viewState.loggedInUserId;
var conversationId = viewState.id;
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:setFavourite');
return Repository.setFavouriteConversations(userId, [conversationId])
.then(function() {
var newState = StateManager.setIsFavourite(viewState, true);
return render(newState);
})
.then(function() {
return PubSub.publish(
MessageDrawerEvents.CONVERSATION_SET_FAVOURITE,
formatConversationForEvent(viewState)
);
})
.then(function(result) {
pendingPromise.resolve();
return result;
});
};
/**
* Unset the current conversation as a favourite conversation.
*
* @return {Promise} Renderer promise.
*/
var unsetFavourite = function() {
var userId = viewState.loggedInUserId;
var conversationId = viewState.id;
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:unsetFavourite');
return Repository.unsetFavouriteConversations(userId, [conversationId])
.then(function() {
var newState = StateManager.setIsFavourite(viewState, false);
return render(newState);
})
.then(function() {
return PubSub.publish(
MessageDrawerEvents.CONVERSATION_UNSET_FAVOURITE,
formatConversationForEvent(viewState)
);
})
.then(function(result) {
pendingPromise.resolve();
return result;
});
};
/**
* Set the current conversation as a muted conversation.
*
* @return {Promise} Renderer promise.
*/
var setMuted = function() {
var userId = viewState.loggedInUserId;
var conversationId = viewState.id;
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:markConversationAsRead');
return Repository.setMutedConversations(userId, [conversationId])
.then(function() {
var newState = StateManager.setIsMuted(viewState, true);
return render(newState);
})
.then(function() {
return PubSub.publish(
MessageDrawerEvents.CONVERSATION_SET_MUTED,
formatConversationForEvent(viewState)
);
})
.then(function(result) {
pendingPromise.resolve();
return result;
});
};
/**
* Unset the current conversation as a muted conversation.
*
* @return {Promise} Renderer promise.
*/
var unsetMuted = function() {
var userId = viewState.loggedInUserId;
var conversationId = viewState.id;
return Repository.unsetMutedConversations(userId, [conversationId])
.then(function() {
var newState = StateManager.setIsMuted(viewState, false);
return render(newState);
})
.then(function() {
return PubSub.publish(
MessageDrawerEvents.CONVERSATION_UNSET_MUTED,
formatConversationForEvent(viewState)
);
});
};
/**
* Tell the statemanager there is a request to delete the selected messages
* and run the renderer to show confirm delete messages dialogue.
*
* @param {Number} userId User id.
*/
var requestDeleteSelectedMessages = function(userId) {
var selectedMessageIds = viewState.selectedMessageIds;
cancelRequest(userId);
var newState = StateManager.addPendingDeleteMessagesById(viewState, selectedMessageIds);
render(newState);
};
/**
* Send the repository a request to delete the messages pending deletion. Update the statemanager
* and publish a message deletion event.
*
* @return {Promise} Renderer promise.
*/
var deleteSelectedMessages = function() {
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:deleteSelectedMessages');
var messageIds = viewState.pendingDeleteMessageIds;
var sentMessages = viewState.messages.filter(function(message) {
// If a message sendState is null then it means it was loaded from the server or if it's
// set to sent then it means the user has successfully sent it in this page load.
return messageIds.indexOf(message.id) >= 0 && (message.sendState == 'sent' || message.sendState === null);
});
var newState = StateManager.setLoadingConfirmAction(viewState, true);
render(newState);
var deleteMessagesPromise = $.Deferred().resolve().promise();
if (sentMessages.length) {
// We only need to send a request to the server if we're trying to delete messages that
// have successfully been sent.
var sentMessageIds = sentMessages.map(function(message) {
return message.id;
});
if (newState.deleteMessagesForAllUsers) {
deleteMessagesPromise = Repository.deleteMessagesForAllUsers(viewState.loggedInUserId, sentMessageIds);
} else {
deleteMessagesPromise = Repository.deleteMessages(viewState.loggedInUserId, sentMessageIds);
}
}
// Mark that we are deleting content from the conversation to prevent updates of it.
isDeletingConversationContent = true;
// Stop polling for new messages to the open conversation.
if (newMessagesPollTimer) {
newMessagesPollTimer.stop();
}
return deleteMessagesPromise.then(function() {
var newState = StateManager.removeMessagesById(viewState, messageIds);
newState = StateManager.removePendingDeleteMessagesById(newState, messageIds);
newState = StateManager.removeSelectedMessagesById(newState, messageIds);
newState = StateManager.setLoadingConfirmAction(newState, false);
newState = StateManager.setDeleteMessagesForAllUsers(newState, false);
var prevLastMessage = viewState.messages[viewState.messages.length - 1];
var newLastMessage = newState.messages.length ? newState.messages[newState.messages.length - 1] : null;
if (newLastMessage && newLastMessage.id != prevLastMessage.id) {
var conversation = formatConversationForEvent(newState);
PubSub.publish(MessageDrawerEvents.CONVERSATION_NEW_LAST_MESSAGE, conversation);
} else if (!newState.messages.length) {
PubSub.publish(MessageDrawerEvents.CONVERSATION_DELETED, newState.id);
}
isDeletingConversationContent = false;
return render(newState);
})
.then(function(result) {
pendingPromise.resolve();
return result;
})
.catch(Notification.exception);
};
/**
* Tell the statemanager there is a request to delete a conversation
* and run the renderer to show confirm delete conversation dialogue.
*
* @param {Number} userId User id of other user.
*/
var requestDeleteConversation = function(userId) {
cancelRequest(userId);
var newState = StateManager.setPendingDeleteConversation(viewState, true);
render(newState);
};
/**
* Send the repository a request to delete a conversation. Update the statemanager
* and publish a conversation deleted event.
*
* @return {Promise} Renderer promise.
*/
var deleteConversation = function() {
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:markConversationAsRead');
var newState = StateManager.setLoadingConfirmAction(viewState, true);
render(newState);
// Mark that we are deleting the conversation to prevent updates of it.
isDeletingConversationContent = true;
// Stop polling for new messages to the open conversation.
if (newMessagesPollTimer) {
newMessagesPollTimer.stop();
}
return Repository.deleteConversation(viewState.loggedInUserId, viewState.id)
.then(function() {
var newState = StateManager.removeMessages(viewState, viewState.messages);
newState = StateManager.removeSelectedMessagesById(newState, viewState.selectedMessageIds);
newState = StateManager.setPendingDeleteConversation(newState, false);
newState = StateManager.setLoadingConfirmAction(newState, false);
PubSub.publish(MessageDrawerEvents.CONVERSATION_DELETED, newState.id);
isDeletingConversationContent = false;
return render(newState);
})
.then(function(result) {
pendingPromise.resolve();
return result;
});
};
/**
* Tell the statemanager to cancel all pending actions.
*
* @param {Number} userId User id.
*/
var cancelRequest = function(userId) {
var pendingDeleteMessageIds = viewState.pendingDeleteMessageIds;
var newState = StateManager.removePendingAddContactsById(viewState, [userId]);
newState = StateManager.removePendingRemoveContactsById(newState, [userId]);
newState = StateManager.removePendingUnblockUsersById(newState, [userId]);
newState = StateManager.removePendingBlockUsersById(newState, [userId]);
newState = StateManager.removePendingDeleteMessagesById(newState, pendingDeleteMessageIds);
newState = StateManager.setPendingDeleteConversation(newState, false);
newState = StateManager.setDeleteMessagesForAllUsers(newState, false);
render(newState);
};
/**
* Accept the contact request from the given user.
*
* @param {Number} userId User id of other user.
* @return {Promise} Renderer promise.
*/
var acceptContactRequest = function(userId) {
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:acceptContactRequest');
// Search the list of the logged in user's contact requests to find the
// one from this user.
var loggedInUserId = viewState.loggedInUserId;
var requests = viewState.members[userId].contactrequests.filter(function(request) {
return request.requesteduserid == loggedInUserId;
});
var request = requests[0];
var newState = StateManager.setLoadingConfirmAction(viewState, true);
render(newState);
return Repository.acceptContactRequest(userId, loggedInUserId)
.then(function(profile) {
var newState = StateManager.removeContactRequests(viewState, [request]);
newState = StateManager.addMembers(viewState, [profile]);
newState = StateManager.setLoadingConfirmAction(newState, false);
return render(newState);
})
.then(function() {
PubSub.publish(MessageDrawerEvents.CONTACT_ADDED, viewState.members[userId]);
PubSub.publish(MessageDrawerEvents.CONTACT_REQUEST_ACCEPTED, request);
return;
})
.then(function(result) {
pendingPromise.resolve();
return result;
});
};
/**
* Decline the contact request from the given user.
*
* @param {Number} userId User id of other user.
* @return {Promise} Renderer promise.
*/
var declineContactRequest = function(userId) {
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:declineContactRequest');
// Search the list of the logged in user's contact requests to find the
// one from this user.
var loggedInUserId = viewState.loggedInUserId;
var requests = viewState.members[userId].contactrequests.filter(function(request) {
return request.requesteduserid == loggedInUserId;
});
var request = requests[0];
var newState = StateManager.setLoadingConfirmAction(viewState, true);
render(newState);
return Repository.declineContactRequest(userId, loggedInUserId)
.then(function(profile) {
var newState = StateManager.removeContactRequests(viewState, [request]);
newState = StateManager.addMembers(viewState, [profile]);
newState = StateManager.setLoadingConfirmAction(newState, false);
return render(newState);
})
.then(function() {
PubSub.publish(MessageDrawerEvents.CONTACT_REQUEST_DECLINED, request);
return;
})
.then(function(result) {
pendingPromise.resolve();
return result;
});
};
/**
* Send all of the messages in the buffer to the server to be created. Update the
* UI with the newly created message information.
*
* This function will recursively call itself in order to make sure the buffer is
* always being processed.
*/
var processSendMessageBuffer = function() {
if (isSendingMessage) {
// We're already sending messages so nothing to do.
return;
}
if (!sendMessageBuffer.length) {
// No messages waiting to send. Nothing to do.
return;
}
var pendingPromise = new Pending('core_message/message_drawer_view_conversation:processSendMessageBuffer');
// Flag that we're processing the queue.
isSendingMessage = true;
// Grab all of the messages in the buffer.
var messagesToSend = sendMessageBuffer.slice();
// Empty the buffer since we're processing it.
sendMessageBuffer = [];
var conversationId = viewState.id;
var newConversationId = null;
var messagesText = messagesToSend.map(function(message) {
return message.text;
});
var messageIds = messagesToSend.map(function(message) {
return message.id;
});
var sendMessagePromise = null;
var newCanDeleteMessagesForAllUsers = null;
if (!conversationId && (viewState.type != CONVERSATION_TYPES.PUBLIC)) {
// If it's a new private conversation then we need to use the old
// web service function to create the conversation.
var otherUserId = getOtherUserId();
sendMessagePromise = Repository.sendMessagesToUser(otherUserId, messagesText)
.then(function(messages) {
if (messages.length) {
newConversationId = parseInt(messages[0].conversationid, 10);
newCanDeleteMessagesForAllUsers = messages[0].candeletemessagesforallusers;
}
return messages;
});
} else {
sendMessagePromise = Repository.sendMessagesToConversation(conversationId, messagesText);
}
sendMessagePromise
.then(function(messages) {
var newMessageIds = messages.map(function(message) {
return message.id;
});
var data = [];
var selectedToRemove = [];
var selectedToAdd = [];
messagesToSend.forEach(function(oldMessage, index) {
var newMessage = messages[index];
// Update messages expects and array of arrays where the first value
// is the old message to update and the second value is the new values
// to set.
data.push([oldMessage, newMessage]);
if (viewState.selectedMessageIds.indexOf(oldMessage.id) >= 0) {
// If the message was added to the "selected messages" list while it was still
// being sent then we should update it's id in that list now to make sure future
// actions work.
selectedToRemove.push(oldMessage.id);
selectedToAdd.push(newMessage.id);
}
});
var newState = StateManager.updateMessages(viewState, data);
newState = StateManager.setMessagesSendSuccessById(newState, newMessageIds);
if (selectedToRemove.length) {
newState = StateManager.removeSelectedMessagesById(newState, selectedToRemove);
}
if (selectedToAdd.length) {
newState = StateManager.addSelectedMessagesById(newState, selectedToAdd);
}
var conversation = formatConversationForEvent(newState);
if (!newState.id) {
// If this message created the conversation then save the conversation
// id.
newState = StateManager.setId(newState, newConversationId);
conversation.id = newConversationId;
resetMessagePollTimer(newConversationId);
PubSub.publish(MessageDrawerEvents.CONVERSATION_CREATED, conversation);
newState = StateManager.setCanDeleteMessagesForAllUsers(newState, newCanDeleteMessagesForAllUsers);
}
// Update the UI with the new message values from the server.
render(newState);
// Recurse just in case there has been more messages added to the buffer.
isSendingMessage = false;
processSendMessageBuffer();
PubSub.publish(MessageDrawerEvents.CONVERSATION_NEW_LAST_MESSAGE, conversation);
return;
})
.then(function(result) {
pendingPromise.resolve();
return result;
})
.catch(function(e) {
var errorMessage;
if (e.message) {
errorMessage = $.Deferred().resolve(e.message).promise();
} else {
errorMessage = Str.get_string('unknownerror', 'core');
}
var handleFailedMessages = function(errorMessage) {
// We failed to create messages so remove the old messages from the pending queue
// and update the UI to indicate that the message failed.
var newState = StateManager.setMessagesSendFailById(viewState, messageIds, errorMessage);
render(newState);
isSendingMessage = false;
processSendMessageBuffer();
};
errorMessage.then(handleFailedMessages)
.then(function(result) {
pendingPromise.resolve();
return result;
})
.catch(function(e) {
// Hrmm, we can't even load the error messages string! We'll have to
// hard code something in English here if we still haven't got a message
// to show.
var finalError = e.message || 'Something went wrong!';
handleFailedMessages(finalError);
});
});
};
/**
* Create a plain version of an HTML text.
*
* This texts is used as a message preview while is sent to the server. This way
* it is possible to prevent self-xss.
*
* @param {String} text Text to send.
* @return {String} The plain text version of the text.
*/
const previewText = function(text) {
// Remove all script and styles from text (we don't want it there).
let plaintext = text.replace(/<style([\s\S]*?)<\/style>/gi, '');
plaintext = plaintext.replace(/<script([\s\S]*?)<\/script>/gi, '');
// Beautify a bit the output adding some line breaks.
plaintext = plaintext.replace(/<\/div>/ig, '\n');
plaintext = plaintext.replace(/<\/li>/ig, '\n');
plaintext = plaintext.replace(/<li>/ig, ' * ');
plaintext = plaintext.replace(/<\/ul>/ig, '\n');
plaintext = plaintext.replace(/<\/p>/ig, '\n');
plaintext = plaintext.replace(/<br[^>]*>/gi, '\n');
// Remove all remaining tags and convert line breaks into html.
plaintext = plaintext.replace(/<[^>]+>/ig, '');
plaintext = plaintext.replace(/\n+/ig, '\n');
return plaintext.replace(/\n/ig, '<br>');
};
/**
* Buffers messages to be sent to the server. We use a buffer here to allow the
* user to freely input messages without blocking the interface for them.
*
* Instead we just queue all of their messages up and send them as fast as we can.
*
* @param {String} text Text to send.
*/
var sendMessage = function(text) {
var id = 'temp' + Date.now();
// Render a preview version of the message while sending.
let loadingmessage = {
id: id,
useridfrom: viewState.loggedInUserId,
text: previewText(text),
timecreated: null
};
var newState = StateManager.addMessages(viewState, [loadingmessage]);
render(newState);
// Send the real message.
var message = {
id: id,
useridfrom: viewState.loggedInUserId,
text: text,
timecreated: null
};
sendMessageBuffer.push(message);
processSendMessageBuffer();
};
/**
* Retry sending a message that failed.
*
* @param {Object} message The message to send.
*/
var retrySendMessage = function(message) {
var newState = StateManager.setMessagesSendPendingById(viewState, [message.id]);
render(newState);
sendMessageBuffer.push(message);
processSendMessageBuffer();
};
/**
* Toggle the selected messages update the statemanager and render the result.
*
* @param {Number} messageId The id of the message to be toggled
*/
var toggleSelectMessage = function(messageId) {
var newState = viewState;
if (viewState.selectedMessageIds.indexOf(messageId) > -1) {
newState = StateManager.removeSelectedMessagesById(viewState, [messageId]);
} else {
newState = StateManager.addSelectedMessagesById(viewState, [messageId]);
}
render(newState);
};
/**
* Cancel edit mode (selecting the messages).
*/
var cancelEditMode = function() {
cancelRequest(getOtherUserId());
var newState = StateManager.removeSelectedMessagesById(viewState, viewState.selectedMessageIds);
render(newState);
};
/**
* Process the patches in the render buffer one at a time in order until the
* buffer is empty.
*
* @param {Object} header The conversation header container element.
* @param {Object} body The conversation body container element.
* @param {Object} footer The conversation footer container element.
*/
var processRenderBuffer = function(header, body, footer) {
if (isRendering) {
return;
}
if (!renderBuffer.length) {
return;
}
isRendering = true;
var renderable = renderBuffer.shift();
var renderPromises = renderers.map(function(renderFunc) {
return renderFunc(renderable.patch);
});
$.when.apply(null, renderPromises)
.then(function() {
isRendering = false;
renderable.deferred.resolve(true);
// Keep processing the buffer until it's empty.
processRenderBuffer(header, body, footer);
return;
})
.catch(function(error) {
isRendering = false;
renderable.deferred.reject(error);
Notification.exception(error);
});
};
/**
* Create a function to render the Conversation.
*
* @param {Object} header The conversation header container element.
* @param {Object} body The conversation body container element.
* @param {Object} footer The conversation footer container element.
* @param {Bool} isNewConversation Has someone else already initialised a conversation?
* @return {Promise} Renderer promise.
*/
var generateRenderFunction = function(header, body, footer, isNewConversation) {
var rendererFunc = function(patch) {
return Renderer.render(header, body, footer, patch);
};
if (!isNewConversation) {
// Looks like someone got here before us! We'd better update our
// UI to make sure it matches.
var initialState = StateManager.buildInitialState(viewState.midnight, viewState.loggedInUserId, viewState.id);
var syncPatch = Patcher.buildPatch(initialState, viewState);
rendererFunc(syncPatch);
}
renderers.push(rendererFunc);
return function(newState) {
var patch = Patcher.buildPatch(viewState, newState);
var deferred = $.Deferred();
// Check if the patch has any data. Ignore empty patches.
if (Object.keys(patch).length) {
// Add the patch to the render buffer which gets processed in order.
renderBuffer.push({
patch: patch,
deferred: deferred
});
} else {
deferred.resolve(true);
}
// This is a great place to add in some console logging if you need
// to debug something. You can log the current state, the next state,
// and the generated patch and see exactly what will be updated.
// Optimistically update the state. We're going to assume that the rendering
// will always succeed. The rendering is asynchronous (annoyingly) so it's buffered
// but it'll reach eventual consistency with the current state.
viewState = newState;
if (newState.id) {
// Only cache created conversations.
stateCache[newState.id] = {
state: newState,
messagesOffset: getMessagesOffset(),
loadedAllMessages: hasLoadedAllMessages()
};
}
// Start processing the buffer.
processRenderBuffer(header, body, footer);
return deferred.promise();
};
};
/**
* Create a confirm action function.
*
* @param {Function} actionCallback The callback function.
* @return {Function} Confirm action handler.
*/
var generateConfirmActionHandler = function(actionCallback) {
return function(e, data) {
if (!viewState.loadingConfirmAction) {
actionCallback(getOtherUserId());
var newState = StateManager.setLoadingConfirmAction(viewState, false);
render(newState);
}
data.originalEvent.preventDefault();
};
};
/**
* Send message event handler.
*
* @param {Object} e Element this event handler is called on.
* @param {Object} data Data for this event.
*/
var handleSendMessage = function(e, data) {
var target = $(e.target);
var footerContainer = target.closest(SELECTORS.FOOTER_CONTAINER);
var textArea = footerContainer.find(SELECTORS.MESSAGE_TEXT_AREA);
var text = textArea.val().trim();
if (text !== '') {
sendMessage(text);
textArea.val('');
textArea.focus();
}
data.originalEvent.preventDefault();
};
/**
* Select message event handler.
*
* @param {Object} e Element this event handler is called on.
* @param {Object} data Data for this event.
*/
var handleSelectMessage = function(e, data) {
var selection = window.getSelection();
var target = $(e.target);
if (selection.toString() != '') {
// Bail if we're selecting.
return;
}
if (target.is('a')) {
// Clicking on a link in the message so ignore it.
return;
}
var element = target.closest(SELECTORS.MESSAGE);
var messageId = element.attr('data-message-id');
toggleSelectMessage(messageId);
data.originalEvent.preventDefault();
};
/**
* Handle retry sending of message.
*
* @param {Object} e Element this event handler is called on.
* @param {Object} data Data for this event.
*/
var handleRetrySendMessage = function(e, data) {
var target = $(e.target);
var element = target.closest(SELECTORS.MESSAGE);
var messageId = element.attr('data-message-id');
var messages = viewState.messages.filter(function(message) {
return message.id == messageId;
});
var message = messages.length ? messages[0] : null;
if (message) {
retrySendMessage(message);
}
data.originalEvent.preventDefault();
data.originalEvent.stopPropagation();
e.stopPropagation();
};
/**
* Cancel edit mode event handler.
*
* @param {Object} e Element this event handler is called on.
* @param {Object} data Data for this event.
*/
var handleCancelEditMode = function(e, data) {
cancelEditMode();
data.originalEvent.preventDefault();
};
/**
* Show the view contact page.
*
* @param {String} namespace Unique identifier for the Routes
* @return {Function} View contact handler.
*/
var generateHandleViewContact = function(namespace) {
return function(e, data) {
var otherUserId = getOtherUserId();
var otherUser = viewState.members[otherUserId];
MessageDrawerRouter.go(namespace, MessageDrawerRoutes.VIEW_CONTACT, otherUser);
data.originalEvent.preventDefault();
};
};
/**
* Set this conversation as a favourite.
*
* @param {Object} e Element this event handler is called on.
* @param {Object} data Data for this event.
*/
var handleSetFavourite = function(e, data) {
setFavourite().catch(Notification.exception);
data.originalEvent.preventDefault();
};
/**
* Unset this conversation as a favourite.
*
* @param {Object} e Element this event handler is called on.
* @param {Object} data Data for this event.
*/
var handleUnsetFavourite = function(e, data) {
unsetFavourite().catch(Notification.exception);
data.originalEvent.preventDefault();
};
/**
* Show the view group info page.
* Set this conversation as muted.
*
* @param {Object} e Element this event handler is called on.
* @param {Object} data Data for this event.
*/
var handleSetMuted = function(e, data) {
setMuted().catch(Notification.exception);
data.originalEvent.preventDefault();
};
/**
* Unset this conversation as muted.
*
* @param {Object} e Element this event handler is called on.
* @param {Object} data Data for this event.
*/
var handleUnsetMuted = function(e, data) {
unsetMuted().catch(Notification.exception);
data.originalEvent.preventDefault();
};
/**
* Handle clicking on the checkbox that toggles deleting messages for
* all users.
*
* @param {Object} e Element this event handler is called on.
*/
var handleDeleteMessagesForAllUsersToggle = function(e) {
var newValue = $(e.target).prop('checked');
var newState = StateManager.setDeleteMessagesForAllUsers(viewState, newValue);
render(newState);
};
/**
* Show the view contact page.
*
* @param {String} namespace Unique identifier for the Routes
* @return {Function} View group info handler.
*/
var generateHandleViewGroupInfo = function(namespace) {
return function(e, data) {
MessageDrawerRouter.go(
namespace,
MessageDrawerRoutes.VIEW_GROUP_INFO,
{
id: viewState.id,
name: viewState.name,
subname: viewState.subname,
imageUrl: viewState.imageUrl,
totalMemberCount: viewState.totalMemberCount
},
viewState.loggedInUserId
);
data.originalEvent.preventDefault();
};
};
/**
* Handle clicking on the emoji toggle button.
*
* @param {Object} e The event
* @param {Object} data The custom interaction event data
*/
var handleToggleEmojiPicker = function(e, data) {
var newState = StateManager.setShowEmojiPicker(viewState, !viewState.showEmojiPicker);
render(newState);
data.originalEvent.preventDefault();
};
/**
* Handle clicking outside the emoji picker to close it.
*
* @param {Object} e The event
*/
var handleCloseEmojiPicker = function(e) {
var target = $(e.target);
if (
viewState.showEmojiPicker &&
!target.closest(SELECTORS.EMOJI_PICKER_CONTAINER).length &&
!target.closest(SELECTORS.TOGGLE_EMOJI_PICKER_BUTTON).length
) {
var newState = StateManager.setShowEmojiPicker(viewState, false);
render(newState);
}
};
/**
* Listen to, and handle events for conversations.
*
* @param {string} namespace The route namespace.
* @param {Object} header Conversation header container element.
* @param {Object} body Conversation body container element.
* @param {Object} footer Conversation footer container element.
*/
var registerEventListeners = function(namespace, header, body, footer) {
var isLoadingMoreMessages = false;
var messagesContainer = getMessagesContainer(body);
var emojiPickerElement = footer.find(SELECTORS.EMOJI_PICKER);
var emojiAutoCompleteContainer = footer.find(SELECTORS.EMOJI_AUTO_COMPLETE_CONTAINER);
var messageTextArea = footer.find(SELECTORS.MESSAGE_TEXT_AREA);
var headerActivateHandlers = [
[SELECTORS.ACTION_REQUEST_BLOCK, generateConfirmActionHandler(requestBlockUser)],
[SELECTORS.ACTION_REQUEST_UNBLOCK, generateConfirmActionHandler(requestUnblockUser)],
[SELECTORS.ACTION_REQUEST_ADD_CONTACT, generateConfirmActionHandler(requestAddContact)],
[SELECTORS.ACTION_REQUEST_REMOVE_CONTACT, generateConfirmActionHandler(requestRemoveContact)],
[SELECTORS.ACTION_REQUEST_DELETE_CONVERSATION, generateConfirmActionHandler(requestDeleteConversation)],
[SELECTORS.ACTION_CANCEL_EDIT_MODE, handleCancelEditMode],
[SELECTORS.ACTION_VIEW_CONTACT, generateHandleViewContact(namespace)],
[SELECTORS.ACTION_VIEW_GROUP_INFO, generateHandleViewGroupInfo(namespace)],
[SELECTORS.ACTION_CONFIRM_FAVOURITE, handleSetFavourite],
[SELECTORS.ACTION_CONFIRM_MUTE, handleSetMuted],
[SELECTORS.ACTION_CONFIRM_UNFAVOURITE, handleUnsetFavourite],
[SELECTORS.ACTION_CONFIRM_UNMUTE, handleUnsetMuted]
];
var bodyActivateHandlers = [
[SELECTORS.ACTION_CANCEL_CONFIRM, generateConfirmActionHandler(cancelRequest)],
[SELECTORS.ACTION_CONFIRM_BLOCK, generateConfirmActionHandler(blockUser)],
[SELECTORS.ACTION_CONFIRM_UNBLOCK, generateConfirmActionHandler(unblockUser)],
[SELECTORS.ACTION_CONFIRM_ADD_CONTACT, generateConfirmActionHandler(addContact)],
[SELECTORS.ACTION_CONFIRM_REMOVE_CONTACT, generateConfirmActionHandler(removeContact)],
[SELECTORS.ACTION_CONFIRM_DELETE_SELECTED_MESSAGES, generateConfirmActionHandler(deleteSelectedMessages)],
[SELECTORS.ACTION_CONFIRM_DELETE_CONVERSATION, generateConfirmActionHandler(deleteConversation)],
[SELECTORS.ACTION_OKAY_CONFIRM, generateConfirmActionHandler(cancelRequest)],
[SELECTORS.ACTION_REQUEST_ADD_CONTACT, generateConfirmActionHandler(requestAddContact)],
[SELECTORS.ACTION_ACCEPT_CONTACT_REQUEST, generateConfirmActionHandler(acceptContactRequest)],
[SELECTORS.ACTION_DECLINE_CONTACT_REQUEST, generateConfirmActionHandler(declineContactRequest)],
[SELECTORS.MESSAGE, handleSelectMessage],
[SELECTORS.DELETE_MESSAGES_FOR_ALL_USERS_TOGGLE, handleDeleteMessagesForAllUsersToggle],
[SELECTORS.RETRY_SEND, handleRetrySendMessage]
];
var footerActivateHandlers = [
[SELECTORS.SEND_MESSAGE_BUTTON, handleSendMessage],
[SELECTORS.TOGGLE_EMOJI_PICKER_BUTTON, handleToggleEmojiPicker],
[SELECTORS.ACTION_REQUEST_DELETE_SELECTED_MESSAGES, generateConfirmActionHandler(requestDeleteSelectedMessages)],
[SELECTORS.ACTION_REQUEST_ADD_CONTACT, generateConfirmActionHandler(requestAddContact)],
[SELECTORS.ACTION_REQUEST_UNBLOCK, generateConfirmActionHandler(requestUnblockUser)],
];
AutoRows.init(footer);
if (emojiAutoCompleteContainer.length) {
initialiseEmojiAutoComplete(
emojiAutoCompleteContainer[0],
messageTextArea[0],
function(hasSuggestions) {
var newState = StateManager.setShowEmojiAutoComplete(viewState, hasSuggestions);
render(newState);
},
function(emoji) {
var newState = StateManager.setShowEmojiAutoComplete(viewState, false);
render(newState);
messageTextArea.focus();
var cursorPos = messageTextArea.prop('selectionStart');
var currentText = messageTextArea.val();
var textBefore = currentText.substring(0, cursorPos).replace(/\S*$/, '');
var textAfter = currentText.substring(cursorPos).replace(/^\S*/, '');
messageTextArea.val(textBefore + emoji + textAfter);
// Set the cursor position to after the inserted emoji.
messageTextArea.prop('selectionStart', textBefore.length + emoji.length);
messageTextArea.prop('selectionEnd', textBefore.length + emoji.length);
}
);
}
if (emojiPickerElement.length) {
initialiseEmojiPicker(emojiPickerElement[0], function(emoji) {
var newState = StateManager.setShowEmojiPicker(viewState, !viewState.showEmojiPicker);
render(newState);
messageTextArea.focus();
var cursorPos = messageTextArea.prop('selectionStart');
var currentText = messageTextArea.val();
var textBefore = currentText.substring(0, cursorPos);
var textAfter = currentText.substring(cursorPos, currentText.length);
messageTextArea.val(textBefore + emoji + textAfter);
// Set the cursor position to after the inserted emoji.
messageTextArea.prop('selectionStart', cursorPos + emoji.length);
messageTextArea.prop('selectionEnd', cursorPos + emoji.length);
});
}
CustomEvents.define(header, [
CustomEvents.events.activate
]);
CustomEvents.define(body, [
CustomEvents.events.activate
]);
CustomEvents.define(footer, [
CustomEvents.events.activate,
CustomEvents.events.enter,
CustomEvents.events.escape
]);
CustomEvents.define(messagesContainer, [
CustomEvents.events.scrollTop,
CustomEvents.events.scrollLock
]);
messagesContainer.on(CustomEvents.events.scrollTop, function(e, data) {
var hasMembers = Object.keys(viewState.members).length > 1;
if (!isResetting && !isLoadingMoreMessages && !hasLoadedAllMessages() && hasMembers) {
isLoadingMoreMessages = true;
var newState = StateManager.setLoadingMessages(viewState, true);
render(newState);
loadMessages(viewState.id, LOAD_MESSAGE_LIMIT, getMessagesOffset(), NEWEST_FIRST, [])
.then(function() {
isLoadingMoreMessages = false;
setMessagesOffset(getMessagesOffset() + LOAD_MESSAGE_LIMIT);
return;
})
.catch(function(error) {
isLoadingMoreMessages = false;
Notification.exception(error);
});
}
data.originalEvent.preventDefault();
});
headerActivateHandlers.forEach(function(handler) {
var selector = handler[0];
var handlerFunction = handler[1];
header.on(CustomEvents.events.activate, selector, handlerFunction);
});
bodyActivateHandlers.forEach(function(handler) {
var selector = handler[0];
var handlerFunction = handler[1];
body.on(CustomEvents.events.activate, selector, handlerFunction);
});
footerActivateHandlers.forEach(function(handler) {
var selector = handler[0];
var handlerFunction = handler[1];
footer.on(CustomEvents.events.activate, selector, handlerFunction);
});
footer.on(CustomEvents.events.enter, SELECTORS.MESSAGE_TEXT_AREA, function(e, data) {
var enterToSend = footer.attr('data-enter-to-send');
if (enterToSend && enterToSend != 'false' && enterToSend != '0') {
handleSendMessage(e, data);
}
});
footer.on(CustomEvents.events.escape, SELECTORS.EMOJI_PICKER_CONTAINER, handleToggleEmojiPicker);
$(document.body).on('click', handleCloseEmojiPicker);
PubSub.subscribe(MessageDrawerEvents.ROUTE_CHANGED, function(newRouteData) {
if (newMessagesPollTimer) {
if (newRouteData.route != MessageDrawerRoutes.VIEW_CONVERSATION) {
newMessagesPollTimer.stop();
}
}
});
};
/**
* Reset the timer that polls for new messages.
*
* @param {Number} conversationId The conversation id
*/
var resetMessagePollTimer = function(conversationId) {
if (newMessagesPollTimer) {
newMessagesPollTimer.stop();
}
newMessagesPollTimer = new BackOffTimer(
getLoadNewMessagesCallback(conversationId, NEWEST_FIRST),
BackOffTimer.getIncrementalCallback(
viewState.messagePollMin * MILLISECONDS_IN_SEC,
MILLISECONDS_IN_SEC,
viewState.messagePollMax * MILLISECONDS_IN_SEC,
viewState.messagePollAfterMax * MILLISECONDS_IN_SEC
)
);
newMessagesPollTimer.start();
};
/**
* Reset the state to the initial state and render the UI.
*
* @param {Object} body Conversation body container element.
* @param {Number|null} conversationId The conversation id.
* @param {Object} loggedInUserProfile The logged in user's profile.
*/
var resetState = function(body, conversationId, loggedInUserProfile) {
// Reset all of the states back to the beginning if we're loading a new
// conversation.
if (newMessagesPollTimer) {
newMessagesPollTimer.stop();
}
loadedAllMessages = false;
messagesOffset = 0;
newMessagesPollTimer = null;
isRendering = false;
renderBuffer = [];
isResetting = true;
isSendingMessage = false;
isDeletingConversationContent = false;
sendMessageBuffer = [];
var loggedInUserId = loggedInUserProfile.id;
var midnight = parseInt(body.attr('data-midnight'), 10);
var messagePollMin = parseInt(body.attr('data-message-poll-min'), 10);
var messagePollMax = parseInt(body.attr('data-message-poll-max'), 10);
var messagePollAfterMax = parseInt(body.attr('data-message-poll-after-max'), 10);
var initialState = StateManager.buildInitialState(
midnight,
loggedInUserId,
conversationId,
messagePollMin,
messagePollMax,
messagePollAfterMax
);
if (!viewState) {
viewState = initialState;
}
render(initialState);
};
/**
* Load a new empty private conversation between two users or self-conversation.
*
* @param {Object} body Conversation body container element.
* @param {Object} loggedInUserProfile The logged in user's profile.
* @param {Int} otherUserId The other user's id.
* @return {Promise} Renderer promise.
*/
var resetNoConversation = function(body, loggedInUserProfile, otherUserId) {
// Always reset the state back to the initial state so that the
// state manager and patcher can work correctly.
resetState(body, null, loggedInUserProfile);
var resetNoConversationPromise = null;
if (loggedInUserProfile.id != otherUserId) {
// Private conversation between two different users.
resetNoConversationPromise = Repository.getConversationBetweenUsers(
loggedInUserProfile.id,
otherUserId,
true,
true,
0,
0,
LOAD_MESSAGE_LIMIT,
0,
NEWEST_FIRST
);
} else {
// Self conversation.
resetNoConversationPromise = Repository.getSelfConversation(
loggedInUserProfile.id,
LOAD_MESSAGE_LIMIT,
0,
NEWEST_FIRST
);
}
return resetNoConversationPromise.then(function(conversation) {
// Looks like we have a conversation after all! Let's use that.
return resetByConversation(body, conversation, loggedInUserProfile);
})
.catch(function() {
// Can't find a conversation. Oh well. Just load up a blank one.
return loadEmptyPrivateConversation(loggedInUserProfile, otherUserId);
});
};
/**
* Load new messages into the conversation based on a time interval.
*
* @param {Object} body Conversation body container element.
* @param {Number} conversationId The conversation id.
* @param {Object} loggedInUserProfile The logged in user's profile.
* @return {Promise} Renderer promise.
*/
var resetById = function(body, conversationId, loggedInUserProfile) {
var cache = null;
if (conversationId in stateCache) {
cache = stateCache[conversationId];
}
// Always reset the state back to the initial state so that the
// state manager and patcher can work correctly.
resetState(body, conversationId, loggedInUserProfile);
var promise = $.Deferred().resolve({}).promise();
if (cache) {
// We've seen this conversation before so there is no need to
// send any network requests.
var newState = cache.state;
// Reset some loading states just in case they were left weirdly.
newState = StateManager.setLoadingMessages(newState, false);
newState = StateManager.setLoadingMembers(newState, false);
setMessagesOffset(cache.messagesOffset);
setLoadedAllMessages(cache.loadedAllMessages);
render(newState);
} else {
promise = loadNewConversation(
conversationId,
loggedInUserProfile,
LOAD_MESSAGE_LIMIT,
0,
NEWEST_FIRST
);
}
return promise.then(function() {
return resetMessagePollTimer(conversationId);
});
};
/**
* Load new messages into the conversation based on a time interval.
*
* @param {Object} body Conversation body container element.
* @param {Object} conversation The conversation.
* @param {Object} loggedInUserProfile The logged in user's profile.
* @return {Promise} Renderer promise.
*/
var resetByConversation = function(body, conversation, loggedInUserProfile) {
var cache = null;
if (conversation.id in stateCache) {
cache = stateCache[conversation.id];
}
// Always reset the state back to the initial state so that the
// state manager and patcher can work correctly.
resetState(body, conversation.id, loggedInUserProfile);
var promise = $.Deferred().resolve({}).promise();
if (cache) {
// We've seen this conversation before so there is no need to
// send any network requests.
var newState = cache.state;
// Reset some loading states just in case they were left weirdly.
newState = StateManager.setLoadingMessages(newState, false);
newState = StateManager.setLoadingMembers(newState, false);
setMessagesOffset(cache.messagesOffset);
setLoadedAllMessages(cache.loadedAllMessages);
render(newState);
} else {
promise = loadExistingConversation(
conversation,
loggedInUserProfile,
LOAD_MESSAGE_LIMIT,
NEWEST_FIRST
);
}
return promise.then(function() {
return resetMessagePollTimer(conversation.id);
});
};
/**
* Setup the conversation page. This is a rather complex function because there are a
* few combinations of arguments that can be provided to this function to show the
* conversation.
*
* There are:
* 1.) A conversation object with no action or other user id (e.g. from the overview page)
* 2.) A conversation id with no action or other user id (e.g. from the contacts page)
* 3.) No conversation/id with an action and other other user id. (e.g. from contact page)
*
* @param {string} namespace The route namespace.
* @param {Object} header Conversation header container element.
* @param {Object} body Conversation body container element.
* @param {Object} footer Conversation footer container element.
* @param {Object|Number|null} conversationOrId Conversation or id or null
* @param {String} action An action to take on the conversation
* @param {Number} otherUserId The other user id for a private conversation
* @return {Object} jQuery promise
*/
var show = function(namespace, header, body, footer, conversationOrId, action, otherUserId) {
var conversation = null;
var conversationId = null;
// Check what we were given to identify the conversation.
if (conversationOrId && conversationOrId !== null && typeof conversationOrId == 'object') {
conversation = conversationOrId;
conversationId = parseInt(conversation.id, 10);
} else {
conversation = null;
conversationId = parseInt(conversationOrId, 10);
conversationId = isNaN(conversationId) ? null : conversationId;
}
if (!conversationId && action && otherUserId) {
// If we didn't get a conversation id got a user id then let's see if we've
// previously loaded a private conversation with this user.
conversationId = getCachedPrivateConversationIdFromUserId(otherUserId);
}
// This is a new conversation if:
// 1. We don't already have a state
// 2. The given conversation doesn't match the one currently loaded
// 3. We have a view state without a conversation id and we weren't given one
// but we were given a different other user id. This happens when the user
// goes from viewing a user that they haven't yet initialised a conversation
// with to viewing a different user that they also haven't initialised a
// conversation with.
var isNewConversation = !viewState || (viewState.id != conversationId) || (otherUserId && otherUserId != getOtherUserId());
if (!body.attr('data-init')) {
// Generate the render function to bind the header, body, and footer
// elements to it so that we don't need to pass them around this module.
render = generateRenderFunction(header, body, footer, isNewConversation);
registerEventListeners(namespace, header, body, footer);
body.attr('data-init', true);
}
if (isNewConversation) {
var renderPromise = null;
var loggedInUserProfile = getLoggedInUserProfile(body);
if (conversation) {
renderPromise = resetByConversation(body, conversation, loggedInUserProfile, otherUserId);
} else if (conversationId) {
renderPromise = resetById(body, conversationId, loggedInUserProfile, otherUserId);
} else {
renderPromise = resetNoConversation(body, loggedInUserProfile, otherUserId);
}
return renderPromise
.then(function() {
isResetting = false;
// Focus the first element that can receieve it in the header.
header.find(Constants.SELECTORS.CAN_RECEIVE_FOCUS).first().focus();
return;
})
.catch(function(error) {
isResetting = false;
Notification.exception(error);
});
}
// We're not loading a new conversation so we should reset the poll timer to try to load
// new messages.
resetMessagePollTimer(conversationId);
if (viewState.type == CONVERSATION_TYPES.PRIVATE && action) {
// There are special actions that the user can perform in a private (aka 1-to-1)
// conversation.
var currentOtherUserId = getOtherUserId();
switch (action) {
case 'block':
return requestBlockUser(currentOtherUserId);
case 'unblock':
return requestUnblockUser(currentOtherUserId);
case 'add-contact':
return requestAddContact(currentOtherUserId);
case 'remove-contact':
return requestRemoveContact(currentOtherUserId);
}
}
// Final fallback to return a promise if we didn't need to do anything.
return $.Deferred().resolve().promise();
};
/**
* String describing this page used for aria-labels.
*
* @return {Object} jQuery promise
*/
var description = function() {
return Str.get_string('messagedrawerviewconversation', 'core_message', viewState.name);
};
return {
show: show,
description: description
};
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