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After previewing an email is finished, request the next one in the list.

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Browser will cache it, making it available to the user faster.
This commit is contained in:
Nathan Gray 2014-01-18 17:01:29 +00:00
parent 2a36bb6972
commit 55155797d5
1 changed files with 30 additions and 4 deletions
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34
mail/js/app.js
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@ -35,6 +35,12 @@ app.classes.mail = AppJS.extend(
mail_fileSelectorWindow: null,
mail_isMainWindow: true,
// Some state variables to track preview pre-loading
preview_preload: {
timeout: null,
request: null
},
/**
* abbrevations for common access rights
* @array
@ -540,6 +546,10 @@ app.classes.mail = AppJS.extend(
return;
}
// Blank first, so we don't show previous email while loading
var IframeHandle = this.et2.getWidgetById('messageIFRAME');
IframeHandle.set_src('about:blank');
// Set up additional content that can be expanded.
// We add a new URL widget for each address, so they get all the UI
// TO addresses have the first one split out, not all together
@ -620,17 +630,33 @@ app.classes.mail = AppJS.extend(
this.mail_disablePreviewArea(false);
var toolbaractions = ((typeof dataElem != 'undefined' && typeof dataElem.data != 'undefined' && typeof dataElem.data.toolbaractions != 'undefined')?JSON.parse(dataElem.data.toolbaractions):undefined);
if (toolbaractions) this.et2.getWidgetById('toolbar').set_actions(toolbaractions);
var IframeHandle = this.et2.getWidgetById('messageIFRAME');
//console.log(IframeHandle);
// Request email body from server
IframeHandle.set_src(egw.link('/index.php',{menuaction:'mail.mail_ui.loadEmailBody',_messageID:_id}));
var messages = {};
messages['msg'] = [_id];
// When body is requested, mail is marked as read by the mail server. Update UI to match.
if (typeof dataElem != 'undefined' && typeof dataElem.data != 'undefined' && typeof dataElem.data.flags != 'undefined' && typeof dataElem.data.flags.read != 'undefined') dataElem.data.flags.read = 'read';
this.mail_removeRowClass(messages,'unseen');
// var request = new egw_json_request('mail.mail_ui.ajax_loadEmailBody',[_id]);
// request.sendRequest(false);
// Pre-load next email already so user gets it faster
// Browser will cache the file for us
var next = egw_getObjectManager('mail',false,1).getObjectById('nm').getFocusedObject().getNext(1);
if(next && next.id)
{
if(this.preview_preload.timer != null)
{
window.clearTimeout(this.preview_preload.timer);
}
// Wait 0.5s to avoid flooding server if user is scrolling through their mail
this.preview_preload.timer = window.setTimeout( jQuery.proxy(function() {
this.preview_preload.request = jQuery.get(
egw.link('/index.php',{menuaction:'mail.mail_ui.loadEmailBody',_messageID:next.id})
);
},this),500);
}
},
/**