381 lines
16 KiB
Vala
381 lines
16 KiB
Vala
/*
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Copyright (C) 2011-2012 Christian Dywan <christian@twotoats.de>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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See the file COPYING for the full license text.
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*/
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namespace Katze {
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extern static string mkdir_with_parents (string pathname, int mode);
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}
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namespace Sokoke {
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extern static string js_script_eval (void* ctx, string script, void* error);
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}
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namespace Midori {
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public class SpeedDial : GLib.Object {
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string filename;
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public GLib.KeyFile keyfile;
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string? html = null;
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List<Spec> thumb_queue = null;
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WebKit.WebView thumb_view = null;
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Spec? spec = null;
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public class Spec {
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public string dial_id;
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public string uri;
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public Spec (string dial_id, string uri) {
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this.dial_id = dial_id;
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this.uri = uri;
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}
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}
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public SpeedDial (string new_filename, string? fallback = null) {
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filename = new_filename;
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keyfile = new GLib.KeyFile ();
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try {
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keyfile.load_from_file (filename, GLib.KeyFileFlags.NONE);
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}
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catch (GLib.Error io_error) {
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string json;
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size_t len;
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try {
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FileUtils.get_contents (fallback ?? (filename + ".json"),
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out json, out len);
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}
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catch (GLib.Error fallback_error) {
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json = "'{}'";
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len = 4;
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}
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var script = new StringBuilder.sized (len);
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script.append ("var json = JSON.parse (");
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script.append_len (json, (ssize_t)len);
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script.append ("""
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);
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var keyfile = '';
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for (var i in json['shortcuts']) {
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var tile = json['shortcuts'][i];
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keyfile += '[Dial ' + tile['id'].substring (1) + ']\n'
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+ 'uri=' + tile['href'] + '\n'
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+ 'img=' + tile['img'] + '\n'
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+ 'title=' + tile['title'] + '\n\n';
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}
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var columns = json['width'] ? json['width'] : 3;
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var rows = json['shortcuts'] ? json['shortcuts'].length / columns : 0;
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keyfile += '[settings]\n'
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+ 'columns=' + columns + '\n'
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+ 'rows=' + (rows > 3 ? rows : 3) + '\n\n';
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keyfile;
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""");
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try {
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keyfile.load_from_data (
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Sokoke.js_script_eval (null, script.str, null),
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-1, 0);
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}
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catch (GLib.Error eval_error) {
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GLib.critical ("Failed to parse %s as speed dial JSON: %s",
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fallback ?? (filename + ".json"), eval_error.message);
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}
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Katze.mkdir_with_parents (
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Path.build_path (Path.DIR_SEPARATOR_S,
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Environment.get_user_cache_dir (),
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"midori", "thumbnails"), 0700);
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foreach (string tile in keyfile.get_groups ()) {
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try {
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string img = keyfile.get_string (tile, "img");
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string uri = keyfile.get_string (tile, "uri");
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if (img != null && uri[0] != '\0' && uri[0] != '#') {
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uchar[] decoded = Base64.decode (img);
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FileUtils.set_data (build_thumbnail_path (uri), decoded);
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}
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keyfile.remove_key (tile, "img");
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}
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catch (GLib.Error img_error) {
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/* img and uri can be missing */
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}
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}
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}
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}
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public string get_next_free_slot () {
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uint slot_count = 0;
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foreach (string tile in keyfile.get_groups ()) {
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try {
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if (keyfile.has_key (tile, "uri"))
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slot_count++;
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}
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catch (KeyFileError error) { }
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}
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uint slot = 1;
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while (slot <= slot_count) {
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string tile = "Dial %u".printf (slot);
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if (!keyfile.has_group (tile))
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return "Dial %u".printf (slot);
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slot++;
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}
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return "Dial %u".printf (slot_count + 1);
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}
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public void add (string uri, string title, Gdk.Pixbuf img) {
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string id = get_next_free_slot ();
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add_with_id (id, uri, title, img);
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}
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public void add_with_id (string id, string uri, string title, Gdk.Pixbuf img) {
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keyfile.set_string (id, "uri", uri);
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keyfile.set_string (id, "title", title);
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Katze.mkdir_with_parents (Path.build_path (Path.DIR_SEPARATOR_S,
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Paths.get_cache_dir (), "thumbnails"), 0700);
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string filename = build_thumbnail_path (uri);
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try {
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img.save (filename, "png", null, "compression", "7", null);
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}
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catch (Error error) {
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critical ("Failed to save speed dial thumbnail: %s", error.message);
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}
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save ();
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}
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string build_thumbnail_path (string filename) {
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string thumbnail = Checksum.compute_for_string (ChecksumType.MD5, filename) + ".png";
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return Path.build_filename (Paths.get_cache_dir (), "thumbnails", thumbnail);
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}
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public unowned string get_html (bool close_buttons_left, GLib.Object view) throws Error {
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bool load_missing = true;
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if (html != null)
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return html;
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string? head = null;
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string filename = Paths.get_res_filename ("speeddial-head.html");
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if (keyfile != null
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&& FileUtils.get_contents (filename, out head, null)) {
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string header = head.replace ("{title}", _("Speed Dial")).
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replace ("{click_to_add}", _("Click to add a shortcut")).
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replace ("{enter_shortcut_address}", _("Enter shortcut address")).
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replace ("{enter_shortcut_name}", _("Enter shortcut title")).
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replace ("{are_you_sure}", _("Are you sure you want to delete this shortcut?"));
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var markup = new StringBuilder (header);
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uint slot_count = 1;
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foreach (string tile in keyfile.get_groups ()) {
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try {
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if (keyfile.has_key (tile, "uri"))
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slot_count++;
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}
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catch (KeyFileError error) { }
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}
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/* Try to guess the best X by X grid size */
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uint grid_index = 3;
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while ((grid_index * grid_index) < slot_count)
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grid_index++;
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/* Percent width size of one slot */
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uint slot_size = (100 / grid_index);
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/* No editing in private/ app mode or without scripts */
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markup.append_printf (
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"%s<style>.cross { display:none }</style>%s" +
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"<style> div.shortcut { height: %d%%; width: %d%%; }</style>\n",
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Paths.is_readonly () ? "" : "<noscript>",
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Paths.is_readonly () ? "" : "</noscript>",
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slot_size + 1, slot_size - 4);
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/* Combined width of slots should always be less than 100%.
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* Use half of the remaining percentage as a margin size */
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uint div_factor;
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if (slot_size * grid_index >= 100 && grid_index > 4)
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div_factor = 8;
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else
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div_factor = 2;
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uint margin = (100 - ((slot_size - 4) * grid_index)) / div_factor;
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if (margin > 9)
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margin = margin % 10;
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markup.append_printf (
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"<style> body { overflow:hidden } #content { margin-left: %u%%; }</style>", margin);
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if (close_buttons_left)
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markup.append_printf (
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"<style>.cross { left: -14px }</style>");
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foreach (string tile in keyfile.get_groups ()) {
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try {
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string uri = keyfile.get_string (tile, "uri");
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if (uri != null && uri.str ("://") != null && tile.has_prefix ("Dial ")) {
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string title = keyfile.get_string (tile, "title");
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string thumb_filename = build_thumbnail_path (uri);
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uint slot = tile.substring (5, -1).to_int ();
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string encoded;
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try {
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uint8[] thumb;
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FileUtils.get_data (thumb_filename, out thumb);
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encoded = Base64.encode (thumb);
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}
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catch (FileError error) {
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encoded = null;
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if (load_missing)
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get_thumb (tile, uri);
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}
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markup.append_printf ("""
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<div class="shortcut" id="s%u"><div class="preview">
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<a class="cross" href="#" onclick='clearShortcut("s%u");'></a>
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<a href="%s"><img src="data:image/png;base64,%s" title='%s'></a>
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</div><div class="title" onclick='renameShortcut("s%u");'>%s</div></div>
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""",
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slot, slot, uri, encoded ?? "", title, slot, title ?? "");
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}
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else if (tile != "settings")
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keyfile.remove_group (tile);
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}
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catch (KeyFileError error) { }
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}
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markup.append_printf ("""
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<div class="shortcut" id="s%u"><div class="preview new">
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<a class="add" href="#" onclick='return getAction("s%u");'></a>
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</div><div class="title">%s</div></div>
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""",
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slot_count + 1, slot_count + 1, _("Click to add a shortcut"));
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markup.append_printf ("</div>\n</body>\n</html>\n");
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html = markup.str;
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}
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else
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html = "";
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return html;
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}
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public void save_message (string message) throws Error {
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string msg = message.substring (16, -1);
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string[] parts = msg.split (" ", 4);
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string action = parts[0];
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if (action == "add" || action == "rename"
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|| action == "delete" || action == "swap") {
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uint slot_id = parts[1].next_char().to_int () ;
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string dial_id = "Dial %u".printf (slot_id);
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if (action == "delete") {
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string uri = keyfile.get_string (dial_id, "uri");
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string file_path = build_thumbnail_path (uri);
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keyfile.remove_group (dial_id);
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FileUtils.unlink (file_path);
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}
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else if (action == "add") {
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keyfile.set_string (dial_id, "uri", parts[2]);
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get_thumb (dial_id, parts[2]);
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}
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else if (action == "rename") {
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uint offset = parts[0].length + parts[1].length + 2;
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string title = msg.substring (offset, -1);
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keyfile.set_string (dial_id, "title", title);
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}
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else if (action == "swap") {
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uint slot2_id = parts[2].next_char().to_int ();
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string dial2_id = "Dial %u".printf (slot2_id);
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string uri = keyfile.get_string (dial_id, "uri");
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string title = keyfile.get_string (dial_id, "title");
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string uri2 = keyfile.get_string (dial2_id, "uri");
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string title2 = keyfile.get_string (dial2_id, "title");
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keyfile.set_string (dial_id, "uri", uri2);
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keyfile.set_string (dial2_id, "uri", uri);
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keyfile.set_string (dial_id, "title", title2);
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keyfile.set_string (dial2_id, "title", title);
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}
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}
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save ();
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}
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void save () {
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html = null;
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try {
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FileUtils.set_contents (filename, keyfile.to_data ());
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}
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catch (Error error) {
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critical ("Failed to update speed dial: %s", error.message);
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}
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/* FIXME Refresh all open views */
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}
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void load_status (GLib.Object thumb_view_, ParamSpec pspec) {
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if (thumb_view.load_status != WebKit.LoadStatus.FINISHED)
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return;
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return_if_fail (spec != null);
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#if HAVE_OFFSCREEN
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var img = (thumb_view.parent as Gtk.OffscreenWindow).get_pixbuf ();
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var pixbuf_scaled = img.scale_simple (240, 160, Gdk.InterpType.TILES);
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img = pixbuf_scaled;
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#else
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thumb_view.realize ();
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var img = midori_view_web_view_get_snapshot (thumb_view, 240, 160);
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#endif
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unowned string title = thumb_view.get_title ();
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add_with_id (spec.dial_id, spec.uri, title ?? spec.uri, img);
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thumb_queue.remove (spec);
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if (thumb_queue != null && thumb_queue.data != null) {
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spec = thumb_queue.data;
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thumb_view.load_uri (spec.uri);
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}
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else
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/* disconnect_by_func (thumb_view, load_status) */;
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}
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void get_thumb (string dial_id, string uri) {
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if (thumb_view == null) {
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thumb_view = new WebKit.WebView ();
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var settings = new WebKit.WebSettings ();
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settings. set ("enable-scripts", false,
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"enable-plugins", false,
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"auto-load-images", true,
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"enable-html5-database", false,
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"enable-html5-local-storage", false);
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if (settings.get_class ().find_property ("enable-java-applet") != null)
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settings.set ("enable-java-applet", false);
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thumb_view.settings = settings;
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#if HAVE_OFFSCREEN
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var offscreen = new Gtk.OffscreenWindow ();
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offscreen.add (thumb_view);
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thumb_view.set_size_request (800, 600);
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offscreen.show_all ();
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#else
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/* What we are doing here is a bit of a hack. In order to render a
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thumbnail we need a new view and load the url in it. But it has
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to be visible and packed in a container. So we secretly pack it
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into the notebook of the parent browser. */
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notebook.add (thumb_view);
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thumb_view.destroy.connect (Gtk.widget_destroyed);
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/* We use an empty label. It's not invisible but hard to spot. */
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notebook.set_tab_label (thumb_view, new Gtk.EventBox ());
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thumb_view.show ();
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#endif
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}
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thumb_queue.append (new Spec (dial_id, uri));
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if (thumb_queue.nth_data (1) != null)
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return;
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spec = thumb_queue.data;
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thumb_view.notify["load-status"].connect (load_status);
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thumb_view.load_uri (spec.uri);
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}
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}
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}
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