geary/ui/client-web-view.js
Michael James Gratton 3068d1b0e5 Integrate preferred height JS code into PageState, tidy it up a bit.
* ui/client-web-view.js: Move emitPreferredHeightChanged() into PageState
  as ::preferredHeightChanged(). Add a explicit constructor, move
  instance properties into that. Add an interval timer to periodically
  update the preferred height until loaded.
2017-02-01 00:41:43 +11:00

54 lines
1.5 KiB
JavaScript

/*
* Copyright 2016 Michael Gratton <mike@vee.net>
*
* This software is licensed under the GNU Lesser General Public License
* (version 2.1 or later). See the COPYING file in this distribution.
*/
/**
* Application logic for ClientWebView and subclasses.
*/
var PageState = function() {
this.init.apply(this, arguments);
};
PageState.prototype = {
init: function() {
this.allowRemoteImages = false;
this.loaded = false;
var state = this;
var timeoutId = window.setInterval(function() {
state.preferredHeightChanged();
if (state.loaded) {
window.clearTimeout(timeoutId);
}
}, 50);
},
loadRemoteImages: function() {
this.allowRemoteImages = true;
var images = document.getElementsByTagName("IMG");
for (var i = 0; i < images.length; i++) {
var img = images.item(i);
var src = img.src;
img.src = "";
img.src = src;
}
},
remoteImageLoadBlocked: function() {
window.webkit.messageHandlers.remoteImageLoadBlocked.postMessage(null);
},
preferredHeightChanged: function() {
var height = window.document.documentElement.offsetHeight;
if (height > 0) {
window.webkit.messageHandlers.preferredHeightChanged.postMessage(
height
);
}
}
};
var geary = new PageState();
window.onload = function() {
geary.loaded = true;
};