diff --git a/ckanext/charts/assets/js/charts-render-chartjs.js b/ckanext/charts/assets/js/charts-render-chartjs.js index 7f3d075..2c17def 100644 --- a/ckanext/charts/assets/js/charts-render-chartjs.js +++ b/ckanext/charts/assets/js/charts-render-chartjs.js @@ -18,8 +18,67 @@ ckan.module("charts-render-chartjs", function ($, _) { return; } + const unsupportedTypes = ['pie', 'doughnut', 'radar']; + const isZoomSupported = !unsupportedTypes.includes(this.options.config.type); + let zoomOptions = null; + + if (isZoomSupported) { + zoomOptions = this.options.config.options.plugins.zoom; + + this.options.config.options.plugins.title.text = () => { + return 'Zoom: ' + this.zoomStatus(zoomOptions) + ', Pan: ' + this.panStatus(zoomOptions); + }; + + $('#resetZoom').show(); + $('#toggleZoom').show(); + $('#togglePan').show(); + } else { + $('#resetZoom').hide(); + $('#toggleZoom').hide(); + $('#togglePan').hide(); + } + var chart = new Chart(this.el[0].getContext("2d"), this.options.config); window.charts_chartjs = chart; + + $('#resetZoom').on('click', this.resetZoom); + $('#toggleZoom').on('click', (e) => this.toggleZoom(e, zoomOptions)); + $('#togglePan').on('click', (e) => this.togglePan(e, zoomOptions)); + }, + resetZoom: function(event) { + event.preventDefault(); + window.charts_chartjs.resetZoom(); + }, + + zoomStatus: function(zoomOptions) { + return zoomOptions.zoom.drag.enabled ? 'enabled' : 'disabled'; + }, + + panStatus: function(zoomOptions) { + return zoomOptions.pan.enabled ? 'enabled' : 'disabled'; + }, + + toggleZoom: function (event, zoomOptions) { + event.preventDefault(); + + const zoomEnabled = zoomOptions.zoom.wheel.enabled; + + zoomOptions.zoom.wheel.enabled = !zoomEnabled; + zoomOptions.zoom.pinch.enabled = !zoomEnabled; + zoomOptions.zoom.drag.enabled = !zoomEnabled; + + // Update the chart with the new zoom options + window.charts_chartjs.update(); + }, + + togglePan: function(event, zoomOptions) { + event.preventDefault(); + + const currentPanEnabled = zoomOptions.pan.enabled; + zoomOptions.pan.enabled = !currentPanEnabled; + + // Update the chart with the new zoom options + window.charts_chartjs.update(); } }; }); diff --git a/ckanext/charts/assets/js/vendor/chartjs-plugin-zoom.min.js b/ckanext/charts/assets/js/vendor/chartjs-plugin-zoom.min.js new file mode 100644 index 0000000..a6c5577 --- /dev/null +++ b/ckanext/charts/assets/js/vendor/chartjs-plugin-zoom.min.js @@ -0,0 +1,7 @@ +/*! +* chartjs-plugin-zoom v2.0.1 +* undefined + * (c) 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b=$(a.offsetDirection);b&&this.manager.emit(this.options.event+b,a),this.manager.emit(this.options.event,a)}}),i(ga,Y,{defaults:{event:"tap",pointers:1,taps:1,interval:300,time:250,threshold:9,posThreshold:10},getTouchAction:function(){return[ib]},process:function(a){var b=this.options,c=a.pointers.length===b.pointers,d=a.distance list[type[Any]]: ChartJSRadarForm, ] + def create_zoom_and_title_options(self, options: str[dict, Any]) -> dict[str, Any]: + """Add zoom and title plugin options to the provided options dictionary""" + zoom_options = { + "zoom": { + "wheel": {"enabled": True}, + "pinch": {"enabled": True}, + "drag": {"enabled": True}, + "mode": "xy", + }, + "pan": { + "enabled": True, + "modifierKey": "shift", + "mode": "xy", + }, + } + + if "plugins" not in options: + options["plugins"] = {} + + options["plugins"].update( + { + "zoom": zoom_options, + "title": { + "display": True, + "position": "bottom", + }, + } + ) + return options + class ChartJSBarBuilder(ChartJsBuilder): def _prepare_data(self) -> dict[str, Any]: @@ -65,6 +95,7 @@ def _prepare_data(self) -> dict[str, Any]: ) data["data"]["datasets"] = datasets + data["options"] = self.create_zoom_and_title_options(data["options"]) return data @@ -134,6 +165,7 @@ def to_json(self) -> str: "reverse": self.settings.get("invert_y", False), }, } + data["options"] = self.create_zoom_and_title_options(data["options"]) return json.dumps(data) @@ -254,6 +286,7 @@ def to_json(self) -> str: "data": dataset_data, } ] + data["options"] = self.create_zoom_and_title_options(data["options"]) return json.dumps(data) @@ -312,6 +345,7 @@ def to_json(self) -> str: data["data"]["datasets"] = [ {"label": self.settings["y"], "data": dataset_data}, ] + data["options"] = self.create_zoom_and_title_options(data["options"]) return json.dumps(data) diff --git a/ckanext/charts/templates/charts/snippets/chartjs_chart.html b/ckanext/charts/templates/charts/snippets/chartjs_chart.html index 0c8abc7..45506fe 100644 --- a/ckanext/charts/templates/charts/snippets/chartjs_chart.html +++ b/ckanext/charts/templates/charts/snippets/chartjs_chart.html @@ -2,6 +2,11 @@ {% if chart %} +
+ + + +
{% else %}

{{ _("Cannot build chart with current settings") }}