1 new commit in galaxy-central:
https://bitbucket.org/galaxy/galaxy-central/commits/46e48f501767/ Changeset: 46e48f501767 User: jgoecks Date: 2013-06-07 19:31:59 Summary: Trackster: decouple drawing from data fetching by providing option to draw without fetching more data; also use dictionary for drawing options rather than explicit parameters. This decoupling significantly improves UI responsiveness when scrolling. Affected #: 2 files
diff -r 23eefc773ab54e649efae5553fc8879e2f4f7cb4 -r 46e48f501767de58afb05cb4b133d8dfa54319e1 static/scripts/viz/trackster/filters.js --- a/static/scripts/viz/trackster/filters.js +++ b/static/scripts/viz/trackster/filters.js @@ -178,7 +178,7 @@ filter.manager.alpha_filter = null; filter.transparency_icon.removeClass("active"); } - filter.manager.track.request_draw(false, true, true); + filter.manager.track.request_draw({ force: true, clear_after: true }); } ) .appendTo(display_controls_div).hide(); this.height_icon = create_action_icon("Use filter for data height", "arrow-resize-090", @@ -195,7 +195,7 @@ filter.manager.height_filter = null; filter.height_icon.removeClass("active"); } - filter.manager.track.request_draw(false, true, true); + filter.manager.track.request_draw({ force: true, clear_after: true }); } ) .appendTo(display_controls_div).hide(); filter.parent_div.hover( function() { @@ -265,7 +265,7 @@ var self = this; setTimeout(function() { if (values[0] === self.low && values[1] === self.high) { - self.manager.track.request_draw(false, true, true); + self.manager.track.request_draw({ force: true, clear_after: true }); } }, 25);
diff -r 23eefc773ab54e649efae5553fc8879e2f4f7cb4 -r 46e48f501767de58afb05cb4b133d8dfa54319e1 static/scripts/viz/trackster/tracks.js --- a/static/scripts/viz/trackster/tracks.js +++ b/static/scripts/viz/trackster/tracks.js @@ -332,12 +332,15 @@ return false; }, request_draw: function() {}, - _draw: function() {}, + + _draw: function(options) {}, + /** * Returns representation of object in a dictionary for easy saving. * Use from_dict to recreate object. */ to_dict: function() {}, + /** * Set drawable name. */ @@ -346,6 +349,7 @@ this.name = new_name; this.name_div.text(this.name); }, + /** * Revert track name; currently name can be reverted only once. */ @@ -355,6 +359,7 @@ this.name_div.text(this.name); } }, + /** * Remove drawable (a) from its container and (b) from the HTML. */ @@ -369,14 +374,17 @@ view.update_intro_div(); }); }, + /** * Build drawable's container div; this is the parent div for all drawable's elements. */ build_container_div: function() {}, + /** * Build drawable's header div. */ build_header_div: function() {}, + /** * Add an action icon to this object. Appends icon unless prepend flag is specified. */ @@ -390,6 +398,7 @@ this.action_icons[name].hide(); } }, + /** * Build drawable's icons div from object's icons_dict. */ @@ -461,9 +470,9 @@ /** * Draw each drawable in the collection. */ - _draw: function() { + _draw: function(options) { for (var i = 0; i < this.drawables.length; i++) { - this.drawables[i]._draw(); + this.drawables[i]._draw(options); } },
@@ -654,13 +663,14 @@ else { // Showing filters. group.setup_multitrack_filtering(); - group.request_draw(true); + group.request_draw({ clear_tile_cache: true }); } group.filters_manager.toggle(); } }, Drawable.prototype.action_icons_def[2] ], + build_container_div: function() { var container_div = $("<div/>").addClass("group").attr("id", "group_" + this.id); if (this.container) { @@ -668,21 +678,25 @@ } return container_div; }, + build_header_div: function() { var header_div = $("<div/>").addClass("track-header"); header_div.append($("<div/>").addClass(this.drag_handle_class)); this.name_div = $("<div/>").addClass("track-name").text(this.name).appendTo(header_div); return header_div; }, + hide_contents: function () { this.tiles_div.hide(); }, + show_contents: function() { // Show the contents div and labels (if present) this.tiles_div.show(); // Request a redraw of the content this.request_draw(); }, + update_icons: function() { // // Handle update when there are no tracks. @@ -794,6 +808,7 @@ } } }, + /** * Restore individual track filter managers. */ @@ -803,6 +818,7 @@ } this.saved_filters_managers = []; }, + /** * */ @@ -821,6 +837,7 @@ } this.filters_manager.init_filters(); }, + /** * Replace group with a single composite track that includes all group's tracks. */ @@ -832,14 +849,17 @@ var index = this.container.replace_drawable(this, composite_track, true); composite_track.request_draw(); }, + add_drawable: function(drawable) { DrawableCollection.prototype.add_drawable.call(this, drawable); this.update_icons(); }, + remove_drawable: function(drawable) { DrawableCollection.prototype.remove_drawable.call(this, drawable); this.update_icons(); }, + to_dict: function() { // If filters are visible, need to restore original filter managers before converting to dict. if (this.filters_manager.visible()) { @@ -855,10 +875,11 @@
return obj_dict; }, - request_draw: function(clear_tile_cache, force, clear_after) { - for (var i = 0; i < this.drawables.length; i++) { - this.drawables[i].request_draw(clear_tile_cache, force, clear_after); - } + + request_draw: function(options) { + _.each(this.drawables, function(d) { + d.request_draw(options); + }); } });
@@ -902,7 +923,7 @@ ], saved_values: obj_dict.prefs, onchange: function() { - track.request_redraw(true); + track.request_redraw({ clear_tile_cache: true }); } }); }, @@ -1350,7 +1371,10 @@ },
move_delta: function(delta_chrom) { + // // Update low, high. + // + var view = this; var current_chrom_span = view.high - view.low; // Check for left and right boundaries @@ -1365,8 +1389,22 @@ view.low -= delta_chrom; }
- view.request_redraw(); - + // + // Redraw view. + // + + // Redraw without requesting more data immediately. + view.request_redraw({ data_fetch: false }) + + // Set up timeout to redraw with more data when moving stops. + if (this.redraw_on_move_fn) { + clearTimeout(this.redraw_on_move_fn); + } + + this.redraw_on_move_fn = setTimeout(function() { + view.request_redraw(); + }, 200); + // Navigate. var chrom = view.chrom_select.val(); this.trigger_navigate(chrom, view.low, view.high, true); @@ -1409,40 +1447,29 @@ },
/** - * Request that view redraw some or all tracks. If a track is not specificied, redraw all tracks. + * Request that view redraw one or more of view's drawables. If drawable is not specified, + * all drawables are redrawn. */ - request_redraw: function(force, clear_after, a_track) { - var - view = this, + request_redraw: function(options, drawable) { + var view = this, // Either redrawing a single drawable or all view's drawables. - track_list = (a_track ? [a_track] : view.drawables), - track_index; - + track_list = (drawable ? [drawable] : view.drawables); + // Add/update tracks in track list to redraw list. - var track; - for (var i = 0; i < track_list.length; i++) { - track = track_list[i]; - - // Because list elements are arrays, need to look for track index manually. - track_index = -1; - for (var j = 0; j < view.tracks_to_be_redrawn.length; j++) { - if (view.tracks_to_be_redrawn[j][0] === track) { - track_index = j; - break; - } - } - - // Add track to list or update draw parameters. - if (track_index < 0) { - // Track not in list yet. - view.tracks_to_be_redrawn.push([track, force, clear_after]); + _.each(track_list, function(track) { + var track_options = _.find(view.tracks_to_be_redrawn, function(to) { + return to[0] === track; + }); + + if (track_options) { + // Track already in list; update options. + track_options[1] = options; } else { - // Track already in list; update force and clear_after. - view.tracks_to_be_redrawn[i][1] = force; - view.tracks_to_be_redrawn[i][2] = clear_after; + // Track not in list yet. + view.tracks_to_be_redrawn.push([track, options]); } - } + });
// Set up redraw if it has not been requested since last redraw. if (!this.requested_redraw) { @@ -1501,19 +1528,20 @@ this.overview_highlight.css({ left: left_px, width: width_px }); }
- var track, force, clear_after; - for (var i = 0, len = this.tracks_to_be_redrawn.length; i < len; i++) { - track = this.tracks_to_be_redrawn[i][0]; - force = this.tracks_to_be_redrawn[i][1]; - clear_after = this.tracks_to_be_redrawn[i][2]; + // Draw data tracks. + _.each(this.tracks_to_be_redrawn, function(track_options) { + var track = track_options[0], + options = track_options[1]; if (track) { - track._draw(force, clear_after); + track._draw(options); } - } + }); this.tracks_to_be_redrawn = []; - for (i = 0, len = this.label_tracks.length; i < len; i++) { - this.label_tracks[i]._draw(); - } + + // Draw label tracks. + _.each(this.label_tracks, function(label_track) { + label_track._draw(); + }); },
zoom_in: function (point, container) { @@ -2126,7 +2154,7 @@ tile.stale = true; track.data_manager.get_more_data(tile_region, track.mode, tile.resolution, {}, track.data_manager.DEEP_DATA_REQ); $(".bs-tooltip").hide(); - track.request_draw(false, true); + track.request_draw(); }).dblclick(function(e) { // Do not propogate as this would normally zoom in. e.stopPropagation(); @@ -2137,7 +2165,7 @@ tile.stale = true; track.data_manager.get_more_data(tile_region, track.mode, tile.resolution, {}, track.data_manager.BROAD_DATA_REQ); $(".bs-tooltip").hide(); - track.request_draw(false, true); + track.request_draw(); }).dblclick(function(e) { // Do not propogate as this would normally zoom in. e.stopPropagation(); @@ -2469,7 +2497,7 @@ * Action to take during resize. */ on_resize: function() { - this.request_draw(true); + this.request_draw({ clear_tile_cache: true }); },
/** @@ -2778,7 +2806,7 @@ $(".bs-tooltip").remove(); // HACKish: is it always reasonble to use view to get w_scale/current resolution? track.slotters[ track.view.resolution_px_b ].max_rows *= 2; - track.request_draw(true); + track.request_draw({ clear_tile_cache: true }); }, hide: true } @@ -2865,7 +2893,7 @@ // data manager would work if Auto data were checked for compatibility when a specific // mode is chosen. if (new_mode === 'Auto') { this.data_manager.clear(); } - track.request_draw(true); + track.request_draw({ clear_tile_cache: true }); this.action_icons.mode_icon.attr("title", "Set display mode (now: " + track.mode + ")"); return track; }, @@ -2921,11 +2949,11 @@ /** * Request that track be drawn. */ - request_draw: function(clear_tile_cache, force, clear_after) { - if (clear_tile_cache) { + request_draw: function(options) { + if (options && options.clear_tile_cache) { this.tile_cache.clear(); } - this.view.request_redraw(force, clear_after, this); + this.view.request_redraw(options, this); },
/** @@ -2937,15 +2965,19 @@ },
/** - * Draw track. It is possible to force a redraw rather than use cached tiles and/or clear old - * tiles after drawing new tiles. - * NOTE: this function should never be called directly; use request_draw() so that requestAnimationFrame - * can manage drawing. + * Draw track. Options include: + * -force: force a redraw rather than use cached tiles (default: false) + * -clear_after: clear old tiles after drawing new tiles (default: false) + * -data_fetch: fetch data if necessary (default: true) + * + * NOTE: this function should never be called directly; use request_draw() so that drawing + * management can be used. */ - _draw: function(force, clear_after) { + _draw: function(options) { if ( !this.can_draw() ) { return; } - - var low = this.view.low, + + var clear_after = options && options.clear_after, + low = this.view.low, high = this.view.high, range = high - low, width = this.view.container.width(), @@ -2984,7 +3016,7 @@ // Draw tiles. while ( ( tile_index * TILE_SIZE * resolution ) < high ) { tile_region = this._get_tile_bounds(tile_index, resolution); - tile_promise = this.draw_helper(force, tile_region, resolution, w_scale); + tile_promise = this.draw_helper(tile_region, resolution, w_scale, options); tile_promises.push(tile_promise); $.when(tile_promise).then(function(tile) { tiles.push(tile); @@ -3001,8 +3033,13 @@ // Step (c) for (re)moving tiles when clear_after is true: track.tiles_div.children(".remove").remove();
- // HACK: only do postdraw actions when there are tiles; ReferenceTrack may not return tiles. - if (tiles[0]) { + // Only do postdraw actions for tiles; instances where tiles may not be drawn include: + // (a) ReferenceTrack without sufficient resolution; + // (b) data_fetch = false. + tiles = _.filter(tiles, function(t) { + return t !== null; + }); + if (tiles.length !== 0) { track.postdraw_actions(tiles, width, w_scale, clear_after); } }); @@ -3018,7 +3055,7 @@ pref_name = (type === 'max' ? 'max_value' : 'min_value'), // Default action for on_change is to redraw track. on_change = on_change || function() { - track.request_draw(true); + track.request_draw({ clear_tile_cache: true }); }, label = this.container_div.find(".yaxislabel." + css_class);
@@ -3063,7 +3100,7 @@ var track = this; _.each(non_line_track_tiles, function(tile) { tile.html_elt.remove(); - track.draw_helper(true, tile.region, tile.resolution, w_scale, { mode: 'Coverage' }); + track.draw_helper(tile.region, tile.resolution, w_scale, { force: true, mode: 'Coverage' }); });
track._add_yaxis_label('max'); @@ -3115,17 +3152,24 @@
/** * Retrieves from cache, draws, or sets up drawing for a single tile. Returns either a Tile object or a - * jQuery.Deferred object that is fulfilled when tile can be drawn again. + * jQuery.Deferred object that is fulfilled when tile can be drawn again. Options include: + * -force: force a redraw rather than use cached tiles (default: false) + * -data_fetch: fetch data if necessary (default: true) */ - draw_helper: function(force, region, resolution, w_scale, kwargs) { - // Init kwargs if necessary to avoid having to check if kwargs defined. - if (!kwargs) { kwargs = {}; } - - var track = this, + draw_helper: function(region, resolution, w_scale, options) { + // Init options if necessary to avoid having to check if options defined. + if (!options) { options = {}; } + + var force = options.force, + // Fetch data as long as data_fetch option is not set to false. + data_fetch = !( options.data_fetch === false ), + mode = options.mode || this.mode, + + // Useful vars. + track = this, drawables = this._get_drawables(), key = this._gen_tile_cache_key(w_scale, region), - is_tile = function(o) { return (o && 'track' in o); }, - mode = kwargs.mode || track.mode; + is_tile = function(o) { return (o && 'track' in o); };
// Check tile cache, if found show existing tile in correct position var tile = (force ? undefined : track.tile_cache.get_elt(key)); @@ -3136,6 +3180,9 @@ return tile; }
+ // If not fetching data, nothing more to do because data is needed to draw tile. + if (!data_fetch) { return null; } + // Function that returns data/Deferreds needed to draw tile. var get_tile_data = function() { // HACK: if display mode (mode) is in continuous data modes, data mode must be coverage to get coverage data. @@ -3202,8 +3249,8 @@ // Draw all tracks on tile. // canvas.width = width; - // Height is specified in kwargs or is the height found above. - canvas.height = (kwargs.height ? kwargs.height : height); + // Height is specified in options or is the height found above. + canvas.height = (options.height || height); var ctx = canvas.getContext('2d'); ctx.translate(track.left_offset, 0); if (drawables.length > 1) { @@ -3415,7 +3462,7 @@ */ predraw_init: function() {},
- _draw: function() { + _draw: function(options) { var view = this.view, range = view.high - view.low, tickDistance = Math.floor( Math.pow( 10, Math.floor( Math.log( range ) / Math.log( 10 ) ) ) ), @@ -3561,7 +3608,7 @@
// Replace track with group. var index = this.container.replace_drawable(this, group, true); - group.request_draw(true); + group.request_draw({ clear_tile_cache: true }); },
/** @@ -3597,7 +3644,7 @@ d.prefs.min_value = track.prefs.min_value; d.prefs.max_value = track.prefs.max_value; }); - this.request_draw(true); + this.request_draw({ clear_tile_cache: true }); },
/** @@ -3619,7 +3666,7 @@ for (var i = 0; i < tiles.length; i++) { var tile = tiles[i]; if (tile.html_elt.find("canvas").height() !== max_height) { - this.draw_helper(true, tile.region, tile.resolution, w_scale, { height: max_height } ); + this.draw_helper(tile.region, tile.resolution, w_scale, { force: true, height: max_height } ); tile.html_elt.remove(); } } @@ -3671,10 +3718,10 @@ /** * Retrieves data and draws tile if reference data can be displayed. */ - draw_helper: function(force, region, resolution, w_scale, kwargs) { + draw_helper: function(region, resolution, w_scale, options) { if (w_scale > this.view.canvas_manager.char_width_px) { this.tiles_div.show(); - return TiledTrack.prototype.draw_helper.call(this, force, region, resolution, w_scale, kwargs); + return TiledTrack.prototype.draw_helper.call(this, region, resolution, w_scale, options); } else { this.tiles_div.hide(); @@ -3727,7 +3774,7 @@ saved_values: obj_dict.prefs, onchange: function() { track.set_name(track.prefs.name); - track.request_redraw(true); + track.request_redraw({ clear_tile_cache: true }); } });
@@ -3787,7 +3834,7 @@ saved_values: obj_dict.prefs, onchange: function() { track.set_name(track.prefs.name); - this.request_redraw(true); + this.request_redraw({ clear_tile_cache: true }); } });
@@ -3848,7 +3895,7 @@ onchange: function() { track.set_name(track.prefs.name); track.set_painter_from_config(); - track.request_draw(true); + track.request_draw({ clear_tile_cache: true }); } }); this.prefs = this.config.values; @@ -3902,7 +3949,7 @@ var tile = tiles[i]; if (tile.max_val !== global_max) { tile.html_elt.remove(); - track.draw_helper(true, tile.index, tile.resolution, w_scale, { more_tile_data: { max: global_max } } ); + track.draw_helper(tile.index, tile.resolution, w_scale, { more_tile_data: { force: true, max: global_max } } ); } } } @@ -4170,7 +4217,7 @@ saved_values: obj_dict.prefs, onchange: function() { this.track.set_name(this.track.prefs.name); - this.track.request_draw(true); + this.track.request_draw({ clear_tile_cache: true }); } }); this.prefs = this.config.values; @@ -4323,7 +4370,7 @@ saved_values: obj_dict.prefs, onchange: function() { this.track.set_name(this.track.prefs.name); - this.track.request_draw(true); + this.track.request_draw({ clear_tile_cache: true }); } }); this.prefs = this.config.values;
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