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refactor bookmarks into a self-contained javascript

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Jakob Ketterl 2019-10-12 17:02:04 +02:00
parent 78ffa6f184
commit 60e90575ac
1 changed files with 173 additions and 0 deletions
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htdocs/lib/bookmarks.js Normal file
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function BookmarkBar() {
var me = this;
me.localBookmarks = new BookmarkLocalStorage();
me.$container = $("#openwebrx-bookmarks-container");
me.bookmarks = {};
me.$container.on('click', '.bookmark', function(e){
var $bookmark = $(e.target).closest('.bookmark');
me.$container.find('.bookmark').removeClass('selected');
var b = $bookmark.data();
if (!b || !b.frequency || !b.modulation) return;
demodulator_set_offset_frequency(0, b.frequency - center_freq);
demodulator_analog_replace(b.modulation);
$bookmark.addClass('selected');
});
me.$container.on('click', '.action[data-action=edit]', function(e){
e.stopPropagation();
var $bookmark = $(e.target).closest('.bookmark');
me.showEditDialog($bookmark.data());
});
me.$container.on('click', '.action[data-action=delete]', function(e){
e.stopPropagation();
var $bookmark = $(e.target).closest('.bookmark');
me.localBookmarks.deleteBookmark($bookmark.data());
me.loadLocalBookmarks();
});
var $bookmarkButton = $('#openwebrx-panel-receiver .openwebrx-bookmark-button');
if (typeof(Storage) !== 'undefined') {
$bookmarkButton.show();
} else {
$bookmarkButton.hide();
}
$bookmarkButton.click(function(){
me.showEditDialog();
});
me.$dialog = $("#openwebrx-dialog-bookmark");
me.$dialog.find('.openwebrx-button[data-action=cancel]').click(function(){
me.$dialog.hide();
});
me.$dialog.find('.openwebrx-button[data-action=submit]').click(function(){
me.storeBookmark();
});
me.$dialog.find('form').on('submit', function(e){
e.preventDefault();
me.storeBookmark();
});
}
BookmarkBar.prototype.position = function(){
var range = get_visible_freq_range();
$('#openwebrx-bookmarks-container .bookmark').each(function(){
$(this).css('left', scale_px_from_freq($(this).data('frequency'), range));
});
}
BookmarkBar.prototype.loadLocalBookmarks = function(){
var bwh = bandwidth / 2;
var start = center_freq - bwh;
var end = center_freq + bwh;
var bookmarks = this.localBookmarks.getBookmarks().filter(function(b){
return b.frequency >= start && b.frequency <= end;
});
this.replace_bookmarks(bookmarks, 'local', true);
}
BookmarkBar.prototype.replace_bookmarks = function(bookmarks, source, editable) {
editable = !!editable;
bookmarks = bookmarks.map(function(b){
b.source = source;
b.editable = editable;
return b;
});
this.bookmarks[source] = bookmarks;
this.render();
}
BookmarkBar.prototype.render = function(){
var bookmarks = Object.values(this.bookmarks).reduce(function(l, v){ return l.concat(v); });
bookmarks = bookmarks.sort(function(a, b){ return a.frequency - b.frequency; });
var elements = bookmarks.map(function(b){
$bookmark = $(
'<div class="bookmark" data-source="' + b.source + '"' + (b.editable?' editable="editable"':'') + '>' +
'<div class="bookmark-actions">' +
'<div class="openwebrx-button action" data-action="edit"><img src="static/gfx/openwebrx-edit.png"></div>' +
'<div class="openwebrx-button action" data-action="delete"><img src="static/gfx/openwebrx-trashcan.png"></div>' +
'</div>' +
'<div class="bookmark-content">' + b.name + '</div>' +
'</div>'
);
$bookmark.data(b);
return $bookmark;
});
this.$container.find('.bookmark').remove();
this.$container.append(elements);
this.position();
}
BookmarkBar.prototype.showEditDialog = function(bookmark) {
var $form = this.$dialog.find("form");
if (!bookmark) {
bookmark = {
name: "",
frequency: center_freq + demodulators[0].offset_frequency,
modulation: demodulators[0].subtype
}
}
['name', 'frequency', 'modulation'].forEach(function(key){
$form.find('#' + key).val(bookmark[key]);
});
this.$dialog.data('id', bookmark.id);
this.$dialog.show();
this.$dialog.find('#name').focus();
}
BookmarkBar.prototype.storeBookmark = function() {
var me = this;
var bookmark = {};
var valid = true;
['name', 'frequency', 'modulation'].forEach(function(key){
var $input = me.$dialog.find('#' + key);
valid = valid && $input[0].checkValidity();
bookmark[key] = $input.val();
});
if (!valid) {
me.$dialog.find("form :submit").click();
return;
}
bookmark.frequency = Number(bookmark.frequency);
var bookmarks = me.localBookmarks.getBookmarks();
bookmark.id = me.$dialog.data('id');
if (!bookmark.id) {
if (bookmarks.length) {
bookmark.id = 1 + Math.max.apply(Math, bookmarks.map(function(b){ return b.id || 0; }));
} else {
bookmark.id = 1;
}
}
bookmarks = bookmarks.filter(function(b) { return b.id != bookmark.id; });
bookmarks.push(bookmark);
me.localBookmarks.setBookmarks(bookmarks);
me.loadLocalBookmarks();
me.$dialog.hide();
}
BookmarkLocalStorage = function(){
}
BookmarkLocalStorage.prototype.getBookmarks = function(){
return JSON.parse(window.localStorage.getItem("bookmarks")) || [];
}
BookmarkLocalStorage.prototype.setBookmarks = function(bookmarks){
window.localStorage.setItem("bookmarks", JSON.stringify(bookmarks));
}
BookmarkLocalStorage.prototype.deleteBookmark = function(data) {
if (data.id) data = data.id;
var bookmarks = this.getBookmarks();
bookmarks = bookmarks.filter(function(b) { return b.id != data; });
this.setBookmarks(bookmarks);
}