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const Gio = imports.gi.Gio;
const Gtk = imports.gi.Gtk;
const GObject = imports.gi.GObject;
const Lang = imports.lang;
const WebKit = imports.gi.WebKit2;
const Utils = imports.wikipedia.utils;
const hostName = "http://127.0.0.1:3000/"
const getPageByTitleURI = "getArticleByTitle?";
const getPageByQueryURI = "getTopArticleByQuery?";
// Interpret image:// URIs as wikipedia images
WebKit.WebContext.get_default().register_uri_scheme('image', function(request) {
let filename = request.get_uri().slice('image://'.length);
filename = decodeURI(filename);
let pictures_dir = request.get_web_view()._getArticleImagesPath();
let parent = Gio.File.new_for_path(pictures_dir);
let file = parent.get_child(filename);
try {
let stream = file.read(null);
request.finish(stream, -1, 'image/png');
} catch (err) {
let stream = new Gio.MemoryInputStream();
request.finish(stream, 0, 'image/png');
}
});
const WikipediaWebView = new Lang.Class({
Name: 'EndlessWikipediaWebView',
Extends: WebKit.WebView,
Properties: {
'hide-links': GObject.ParamSpec.boolean('hide-links',
'Hide article links',
'A boolean to determine whether links should be shown',
GObject.ParamFlags.READWRITE | GObject.ParamFlags.CONSTRUCT,
false)
},
_init: function(params, links_to_show) {
this.parent(params);
// For debugging
//let settings = this.get_settings();
//settings.set_enable_developer_extras(true);
//this.set_settings(settings);
this.connect('context-menu', Lang.bind(this, function(){return true}));
this._links_to_show = links_to_show;
this.connect('decide-policy',
Lang.bind(this, this._onNavigation));
this.connect('load-changed',
Lang.bind(this, this._onLoadChange));
},
_getFullURL: function(base_url, params){
let full_url = base_url;
for(let key in params){
full_url += key + "=" + params[key] + "&";
}
full_url = full_url.slice(0, -1);
return full_url
},
loadArticleByURI: function(uri) {
let parts = uri.split("/");
let suffix = parts[parts.length - 1];
let title = decodeURI(suffix.replace("_", " ", 'g'));
this.loadArticleByTitle(title);
},
loadArticleByTitle: function(title) {
let params = {"title":title, "hideLinks":this.hide_links};
let url = this._getFullURL(hostName + getPageByTitleURI, params);
this.load_uri(url);
},
loadArticleBySearchQuery: function(query) {
let params = {"query":query, "hideLinks":this.hide_links};
let url = this._getFullURL(hostName + getPageByQueryURI, params);
this.load_uri(url);
},
scriptFinished: function(){
// NO OP
},
setAllowedLinks: function(){
// If you want to show all links, then
// no point in showing some subset of them as well
if(!this.hide_links){
return;
}
let str = JSON.stringify(this._links_to_show);
let script = "window.links_to_show = " + str;
this.run_javascript(script, null, this.scriptFinished, null);
},
_getArticleImagesPath: function() {
let cur_exec = this.get_toplevel().get_application().application_base_path;
return cur_exec + "/web_view/article_images/";
},
_onNavigation: function(webview, decision, decision_type) {
if (decision_type == WebKit.PolicyDecisionType.NAVIGATION_ACTION) {
let uri = decision.request.uri;
if (uri.startsWith(hostName + "wiki/")) {
let parts = uri.split("/");
let suffix = parts[parts.length - 1];
let title = decodeURI(suffix.replace("_", " ", 'g'));
this.loadArticleByTitle(title);
return true;
}
}
return false; // not handled, default behavior
},
_onLoadChange: function(webview, load_event, data){
this.setAllowedLinks();
}
});
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