mirror of
https://github.com/pierre42100/ComunicWeb
synced 2024-11-23 20:49:21 +00:00
145 lines
3.3 KiB
JavaScript
145 lines
3.3 KiB
JavaScript
/**
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* Groups posts section
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*
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* @author Pierre HUBERT
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*/
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ComunicWeb.pages.groups.sections.posts = {
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/**
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* ID of the oldest known post
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*/
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_oldest_post_id: 0,
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/**
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* Loading message
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*/
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_loading_msg: null,
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/**
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* Load post lock
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*/
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_load_post_locked: false,
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/**
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* Display the section
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*
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* @param {Object} info Information about the related group
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* @param {HTMLElement} target The target for the section
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*/
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display: function(info, target){
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//Reset posts counter
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this._oldest_post_id = 0;
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this._load_post_locked = true;
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//Create posts target
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var postsBody = createElem2({
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appendTo: target,
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type: "div",
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class: "box box-primary box-group-posts"
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});
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var postsBody = createElem2({
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appendTo: postsBody,
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type: "div",
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class: "box-body"
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});
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//Display loading message
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this._loading_msg = ComunicWeb.common.messages.createCalloutElem(
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"Loading", "Please wait while we load this group posts...", "info");
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postsBody.appendChild(this._loading_msg);
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//Refresh the list of posts
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this._refresh_list(info, postsBody);
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//Detect user scroll
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$(window).scroll(function(){
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//Cancel event if it came by error
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if(!postsBody.isConnected)
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return;
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//Cancel event if the page is locked
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if(ComunicWeb.pages.groups.sections.posts._load_post_locked !== false)
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return;
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//Check if we reached the bottom of the page
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if($(window).scrollTop() + $(window).height() < $(document).height() - 50){
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return;
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}
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//Lock the loading state
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ComunicWeb.pages.groups.sections.posts._load_post_locked = true;
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//Load next posts
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ComunicWeb.pages.groups.sections.posts._refresh_list(info, postsBody);
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});
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},
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/**
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* Refresh the list of posts of this group
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*
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* @param {Object} info Information about the group
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* @param {HTMLElement} target
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*/
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_refresh_list: function(info, target){
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//Get the posts of the group
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ComunicWeb.components.posts.interface.get_group(info.id,
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ComunicWeb.pages.groups.sections.posts._oldest_post_id, function(result){
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ComunicWeb.pages.groups.sections.posts._loading_msg.remove();
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//Check for errors
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if(result.error){
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target.appendChild(ComunicWeb.common.messages.createCalloutElem(
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"Error", "Could not get this group posts!", "danger"));
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return;
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}
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//Display the list of posts
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ComunicWeb.pages.groups.sections.posts._display_list(result, target);
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});
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},
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/**
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* Display a list of posts
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*
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* @param {Array} list The list of posts
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* @param {HTMLElement} target The target for the list
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*/
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_display_list: function(list, target){
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var oldest_id = 0;
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list.forEach(function(post){
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if(oldest_id == 0 || post.ID < oldest_id)
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oldest_id = post.ID;
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//Display the post
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ComunicWeb.components.posts.ui.display_post(post, target);
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});
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if(this._oldest_post_id == 0 && oldest_id == 0){
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//Display message
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var message = ComunicWeb.common.messages.createCalloutElem("No post to display", "This group has not sent any post yet.", "info");
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message.className += " noGroupPosts";
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target.appendChild(message);
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}
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if(this._oldest_post_id == 0 || this._oldest_post_id > oldest_id)
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this._oldest_post_id = oldest_id;
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//Unlock posts loading (only if we received more than one post)
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if(list.length > 0)
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this._load_post_locked = false;
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},
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}; |