@blueprintjs/core
Version:
Core styles & components
97 lines (95 loc) • 14.5 kB
JavaScript
/*
* Copyright 2016 Palantir Technologies, Inc. All rights reserved.
* Licensed under the BSD-3 License as modified (the “License”); you may obtain a copy
* of the license at https://github.com/palantir/blueprint/blob/master/LICENSE
* and https://github.com/palantir/blueprint/blob/master/PATENTS
*/
;
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var React = require("react");
var ReactDOM = require("react-dom");
var Classes = require("../../common/classes");
var position_1 = require("../../common/position");
var utils_1 = require("../../common/utils");
var popover_1 = require("../popover/popover");
var CONSTRAINTS = [{ attachment: "together", pin: true, to: "window" }];
var TRANSITION_DURATION = 100;
var ContextMenu = (function (_super) {
__extends(ContextMenu, _super);
function ContextMenu() {
var _this = this;
_super.apply(this, arguments);
this.state = {
isOpen: false,
};
this.cancelContextMenu = function (e) { return e.preventDefault(); };
this.handleBackdropContextMenu = function (e) {
// HACKHACK: React function to remove from the event pool (not sure why it's not in typings #66)
e.persist();
e.preventDefault();
// wait for backdrop to disappear so we can find the "real" element at event coordinates.
// timeout duration is equivalent to transition duration so we know it's animated out.
setTimeout(function () {
// retrigger context menu event at the element beneath the backdrop.
// if it has a `contextmenu` event handler then it'll be invoked.
// if it doesn't, no native menu will show (at least on OSX) :(
var newTarget = document.elementFromPoint(e.clientX, e.clientY);
newTarget.dispatchEvent(new MouseEvent("contextmenu", e));
}, TRANSITION_DURATION);
};
this.handlePopoverInteraction = function (nextOpenState) {
if (!nextOpenState) {
_this.hide();
}
};
}
ContextMenu.prototype.render = function () {
// prevent right-clicking in a context menu
var content = React.createElement("div", {onContextMenu: this.cancelContextMenu}, this.state.menu);
return (React.createElement(popover_1.Popover, {backdropProps: { onContextMenu: this.handleBackdropContextMenu }, constraints: CONSTRAINTS, content: content, enforceFocus: false, isModal: true, isOpen: this.state.isOpen, onInteraction: this.handlePopoverInteraction, position: position_1.Position.RIGHT_TOP, popoverClassName: Classes.MINIMAL, useSmartArrowPositioning: false, transitionDuration: TRANSITION_DURATION},
React.createElement("div", {className: Classes.CONTEXT_MENU_POPOVER_TARGET, style: this.state.offset})
));
};
ContextMenu.prototype.show = function (menu, offset, onClose) {
this.setState({ isOpen: true, menu: menu, offset: offset, onClose: onClose });
};
ContextMenu.prototype.hide = function () {
var onClose = this.state.onClose;
this.setState({ isOpen: false, onClose: null });
utils_1.safeInvoke(onClose);
};
return ContextMenu;
}(React.Component));
var contextMenu;
/**
* Show the given menu element at the given offset from the top-left corner of the viewport.
* The menu will appear below-right of this point and will flip to below-left if there is not enough
* room onscreen. The optional callback will be invoked when this menu closes.
*/
function show(menu, offset, onClose) {
if (contextMenu == null) {
var contextMenuElement = document.createElement("div");
contextMenuElement.classList.add(Classes.CONTEXT_MENU);
document.body.appendChild(contextMenuElement);
contextMenu = ReactDOM.render(React.createElement(ContextMenu, null), contextMenuElement);
}
contextMenu.show(menu, offset, onClose);
}
exports.show = show;
/** Hide the open context menu. */
function hide() {
if (contextMenu != null) {
contextMenu.hide();
}
}
exports.hide = hide;
/** Return whether a context menu is currently open. */
function isOpen() {
return contextMenu != null && contextMenu.state.isOpen;
}
exports.isOpen = isOpen;
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All rights reserved.\n * Licensed under the BSD-3 License as modified (the “License”); you may obtain a copy\n * of the license at https://github.com/palantir/blueprint/blob/master/LICENSE\n * and https://github.com/palantir/blueprint/blob/master/PATENTS\n */\n\nimport * as React from \"react\";\nimport * as ReactDOM from \"react-dom\";\n\nimport * as Classes from \"../../common/classes\";\nimport { Position } from \"../../common/position\";\nimport { safeInvoke } from \"../../common/utils\";\nimport { Popover } from \"../popover/popover\";\n\nexport interface IOffset {\n    left: number;\n    top: number;\n}\n\ninterface IContextMenuState {\n    isOpen?: boolean;\n    menu?: JSX.Element;\n    offset?: IOffset;\n    onClose?: () => void;\n}\n\nconst CONSTRAINTS = [ { attachment: \"together\", pin: true, to: \"window\" } ];\nconst TRANSITION_DURATION = 100;\n\nclass ContextMenu extends React.Component<{}, IContextMenuState> {\n    public state: IContextMenuState = {\n        isOpen: false,\n    };\n\n    public render() {\n        // prevent right-clicking in a context menu\n        const content = <div onContextMenu={this.cancelContextMenu}>{this.state.menu}</div>;\n        return (\n            <Popover\n                backdropProps={{ onContextMenu: this.handleBackdropContextMenu }}\n                constraints={CONSTRAINTS}\n                content={content}\n                enforceFocus={false}\n                isModal={true}\n                isOpen={this.state.isOpen}\n                onInteraction={this.handlePopoverInteraction}\n                position={Position.RIGHT_TOP}\n                popoverClassName={Classes.MINIMAL}\n                useSmartArrowPositioning={false}\n                transitionDuration={TRANSITION_DURATION}\n            >\n                <div className={Classes.CONTEXT_MENU_POPOVER_TARGET} style={this.state.offset} />\n            </Popover>\n        );\n    }\n\n    public show(menu: JSX.Element, offset: IOffset, onClose?: () => void) {\n        this.setState({ isOpen: true, menu, offset, onClose });\n    }\n\n    public hide() {\n        const { onClose } = this.state;\n        this.setState({ isOpen: false, onClose: null });\n        safeInvoke(onClose);\n    }\n\n    private cancelContextMenu = (e: React.SyntheticEvent<HTMLDivElement>) => e.preventDefault();\n\n    private handleBackdropContextMenu = (e: React.MouseEvent<HTMLDivElement>) => {\n        // HACKHACK: React function to remove from the event pool (not sure why it's not in typings #66)\n        (e as any).persist();\n        e.preventDefault();\n        // wait for backdrop to disappear so we can find the \"real\" element at event coordinates.\n        // timeout duration is equivalent to transition duration so we know it's animated out.\n        setTimeout(() => {\n            // retrigger context menu event at the element beneath the backdrop.\n            // if it has a `contextmenu` event handler then it'll be invoked.\n            // if it doesn't, no native menu will show (at least on OSX) :(\n            const newTarget = document.elementFromPoint(e.clientX, e.clientY);\n            newTarget.dispatchEvent(new MouseEvent(\"contextmenu\", e));\n        }, TRANSITION_DURATION);\n    }\n\n    private handlePopoverInteraction = (nextOpenState: boolean) => {\n        if (!nextOpenState) {\n            this.hide();\n        }\n    }\n}\n\nlet contextMenu: ContextMenu;\n\n/**\n * Show the given menu element at the given offset from the top-left corner of the viewport.\n * The menu will appear below-right of this point and will flip to below-left if there is not enough\n * room onscreen. The optional callback will be invoked when this menu closes.\n */\nexport function show(menu: JSX.Element, offset: IOffset, onClose?: () => void) {\n    if (contextMenu == null) {\n        const contextMenuElement = document.createElement(\"div\");\n        contextMenuElement.classList.add(Classes.CONTEXT_MENU);\n        document.body.appendChild(contextMenuElement);\n        contextMenu = ReactDOM.render(<ContextMenu />, contextMenuElement) as ContextMenu;\n    }\n\n    contextMenu.show(menu, offset, onClose);\n}\n\n/** Hide the open context menu. */\nexport function hide() {\n    if (contextMenu != null) {\n        contextMenu.hide();\n    }\n}\n\n/** Return whether a context menu is currently open. */\nexport function isOpen() {\n    return contextMenu != null && contextMenu.state.isOpen;\n}\n"],"sourceRoot":"/source/"}