<?xml version="1.0"?>
<!-- This Source Code Form is subject to the terms of the Mozilla Public
   - License, v. 2.0. If a copy of the MPL was not distributed with this
   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->

<!DOCTYPE bindings [
<!ENTITY % commonDialogDTD  SYSTEM "chrome://global/locale/commonDialog.dtd">
<!ENTITY % dialogOverlayDTD SYSTEM "chrome://global/locale/dialogOverlay.dtd">
%commonDialogDTD;
%dialogOverlayDTD;
]>

<bindings id="tabPrompts"
   xmlns="http://www.mozilla.org/xbl"
   xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
   xmlns:xbl="http://www.mozilla.org/xbl">

  <binding id="tabmodalprompt">

    <resources>
        <stylesheet src="chrome://global/content/tabprompts.css"/>
        <stylesheet src="chrome://global/skin/tabprompts.css"/>
    </resources>

    <xbl:content xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
                 role="dialog"
                 aria-describedby="info.body">

        <!-- This is based on the guts of commonDialog.xul -->
        <spacer flex="1"/>
        <hbox pack="center">
            <vbox anonid="mainContainer" class="mainContainer">
                <grid class="topContainer" flex="1">
                    <columns>
                        <column/>
                        <column flex="1"/>
                    </columns>

                    <rows>
                        <vbox anonid="infoContainer" align="center" pack="center" flex="1">
                            <description anonid="info.title" class="info.title" hidden="true" />
                            <description anonid="info.body" class="info.body"/>
                        </vbox>

                        <row anonid="loginContainer" hidden="true" align="center">
                            <label anonid="loginLabel" value="&editfield0.label;" control="loginTextbox"/>
                            <textbox anonid="loginTextbox"/>
                        </row>

                        <row anonid="password1Container" hidden="true" align="center">
                            <label anonid="password1Label" value="&editfield1.label;" control="password1Textbox"/>
                            <textbox anonid="password1Textbox" type="password"/>
                        </row>

                        <row anonid="checkboxContainer" hidden="true">
                            <spacer/>
                            <checkbox anonid="checkbox"/>
                        </row>

                        <xbl:children includes="row"/>
                    </rows>
                </grid>
                <xbl:children/>
                <hbox class="buttonContainer">
                    <button anonid="button3" hidden="true"/>
                    <button anonid="button2" hidden="true"/>
                    <spacer anonid="buttonSpacer" flex="1"/>
                    <button anonid="button1" label="&cancelButton.label;"/>
                    <button anonid="button0" label="&okButton.label;"/>
                </hbox>
            </vbox>
        </hbox>
        <spacer flex="2"/>
    </xbl:content>

    <implementation implements="nsIDOMEventListener">
        <constructor>
        <![CDATA[
            let self = this;
            function getElement(anonid) {
                return document.getAnonymousElementByAttribute(self, "anonid", anonid);
            }

            this.ui = {
                prompt             : this,
                loginContainer     : getElement("loginContainer"),
                loginTextbox       : getElement("loginTextbox"),
                loginLabel         : getElement("loginLabel"),
                password1Container : getElement("password1Container"),
                password1Textbox   : getElement("password1Textbox"),
                password1Label     : getElement("password1Label"),
                infoBody           : getElement("info.body"),
                infoTitle          : getElement("info.title"),
                infoIcon           : null,
                checkbox           : getElement("checkbox"),
                checkboxContainer  : getElement("checkboxContainer"),
                button3            : getElement("button3"),
                button2            : getElement("button2"),
                button1            : getElement("button1"),
                button0            : getElement("button0"),
                // focusTarget (for BUTTON_DELAY_ENABLE) not yet supported
            };

            this.ui.button0.addEventListener("command", this.onButtonClick.bind(this, 0), false);
            this.ui.button1.addEventListener("command", this.onButtonClick.bind(this, 1), false);
            this.ui.button2.addEventListener("command", this.onButtonClick.bind(this, 2), false);
            this.ui.button3.addEventListener("command", this.onButtonClick.bind(this, 3), false);
            // Anonymous wrapper used here because |Dialog| doesn't exist until init() is called!
            this.ui.checkbox.addEventListener("command", function() { self.Dialog.onCheckbox(); }, false);
            this.isLive = false;
        ]]>
        </constructor>
        <destructor>
        <![CDATA[
            if (this.isLive) {
                this.abortPrompt();
            }
        ]]>
        </destructor>

        <field name="ui"/>
        <field name="args"/>
        <field name="linkedTab"/>
        <field name="onCloseCallback"/>
        <field name="Dialog"/>
        <field name="isLive"/>
        <field name="availWidth"/>
        <field name="availHeight"/>
        <field name="minWidth"/>
        <field name="minHeight"/>

        <method name="init">
            <parameter name="args"/>
            <parameter name="linkedTab"/>
            <parameter name="onCloseCallback"/>
            <body>
            <![CDATA[
                this.args = args;
                this.linkedTab = linkedTab;
                this.onCloseCallback = onCloseCallback;

                if (args.enableDelay)
                    throw "BUTTON_DELAY_ENABLE not yet supported for tab-modal prompts";

                // We need to remove the prompt when the tab or browser window is closed or
                // the page navigates, else we never unwind the event loop and that's sad times.
                // Remember to cleanup in shutdownPrompt()!
                this.isLive = true;
                window.addEventListener("resize", this, false);
                window.addEventListener("unload", this, false);
                linkedTab.addEventListener("TabClose", this, false);
                // Note:
                // nsPrompter.js or in e10s mode browser-parent.js call abortPrompt,
                // when the domWindow, for which the prompt was created, generates
                // a "pagehide" event.

                let tmp = {};
                Components.utils.import("resource://gre/modules/CommonDialog.jsm", tmp);
                this.Dialog = new tmp.CommonDialog(args, this.ui);
                this.Dialog.onLoad(null);

                // Display the tabprompt title that shows the prompt origin when
                // the prompt origin is not the same as that of the top window.
                if (!args.showAlertOrigin)
                    this.ui.infoTitle.removeAttribute("hidden");

                // TODO: should unhide buttonSpacer on Windows when there are 4 buttons.
                //       Better yet, just drop support for 4-button dialogs. (bug 609510)

                this.onResize();
            ]]>
            </body>
        </method>

        <method name="shutdownPrompt">
            <body>
            <![CDATA[
                // remove our event listeners
                try {
                    window.removeEventListener("resize", this, false);
                    window.removeEventListener("unload", this, false);
                    this.linkedTab.removeEventListener("TabClose", this, false);
                } catch (e) { }
                this.isLive = false;
                // invoke callback
                this.onCloseCallback();
            ]]>
            </body>
        </method>

        <method name="abortPrompt">
            <body>
            <![CDATA[
                // Called from other code when the page changes.
                this.Dialog.abortPrompt();
                this.shutdownPrompt();
            ]]>
            </body>
        </method>

        <method name="handleEvent">
            <parameter name="aEvent"/>
            <body>
            <![CDATA[
                switch (aEvent.type) {
                  case "resize":
                    this.onResize();
                    break;
                  case "unload":
                  case "TabClose":
                    this.abortPrompt();
                    break;
                }
            ]]>
            </body>
        </method>

        <method name="onResize">
            <body>
            <![CDATA[
                let availWidth = this.clientWidth;
                let availHeight = this.clientHeight;
                if (availWidth == this.availWidth && availHeight == this.availHeight)
                    return;
                this.availWidth = availWidth;
                this.availHeight = availHeight;

                let self = this;
                function getElement(anonid) {
                    return document.getAnonymousElementByAttribute(self, "anonid", anonid);
                }
                let main = getElement("mainContainer");
                let info = getElement("infoContainer");
                let body = this.ui.infoBody;

                // cap prompt dimensions at 60% width and 60% height of content area
                if (!this.minWidth)
                  this.minWidth = parseInt(window.getComputedStyle(main).minWidth);
                if (!this.minHeight)
                  this.minHeight = parseInt(window.getComputedStyle(main).minHeight);
                let maxWidth = Math.max(Math.floor(availWidth * 0.6), this.minWidth) +
                               info.clientWidth - main.clientWidth;
                let maxHeight = Math.max(Math.floor(availHeight * 0.6), this.minHeight) +
                                info.clientHeight - main.clientHeight;
                body.style.maxWidth = maxWidth + "px";
                info.style.overflow = info.style.width = info.style.height = "";

                // when prompt text is too long, use scrollbars
                if (info.clientWidth > maxWidth) {
                    info.style.overflow = "auto";
                    info.style.width = maxWidth + "px";
                }
                if (info.clientHeight > maxHeight) {
                    info.style.overflow = "auto";
                    info.style.height = maxHeight + "px";
                }
            ]]>
            </body>
        </method>

        <method name="onButtonClick">
            <parameter name="buttonNum"/>
            <body>
            <![CDATA[
                // We want to do all the work her asynchronously off a Gecko
                // runnable, because of situations like the one described in
                // https://bugzilla.mozilla.org/show_bug.cgi?id=1167575#c35 : we
                // get here off processing of an OS event and will also process
                // one more Gecko runnable before we break out of the event loop
                // spin whoever posted the prompt is doing.  If we do all our
                // work sync, we will exit modal state _before_ processing that
                // runnable, and if exiting moral state posts a runnable we will
                // incorrectly process that runnable before leaving our event
                // loop spin.
                Services.tm.mainThread.dispatch(() => {
                    this.Dialog["onButton" + buttonNum]();
                    this.shutdownPrompt();
                  },
                  Ci.nsIThread.DISPATCH_NORMAL);
            ]]>
            </body>
        </method>

        <method name="onKeyAction">
            <parameter name="action"/>
            <parameter name="event"/>
            <body>
            <![CDATA[
                if (event.defaultPrevented)
                    return;

                event.stopPropagation();
                if (action == "default") {
                    let bnum = this.args.defaultButtonNum || 0;
                    this.onButtonClick(bnum);
                } else { // action == "cancel"
                    this.onButtonClick(1); // Cancel button
                }
            ]]>
            </body>
        </method>
    </implementation>

    <handlers>
        <!-- Based on dialog.xml handlers -->
        <handler event="keypress" keycode="VK_RETURN"
                 group="system" action="this.onKeyAction('default', event);"/>
        <handler event="keypress" keycode="VK_ESCAPE"
                 group="system" action="this.onKeyAction('cancel', event);"/>
        <handler event="focus" phase="capturing">
            let bnum = this.args.defaultButtonNum || 0;
            let defaultButton = this.ui["button" + bnum];

            let { AppConstants } =
                Components.utils.import("resource://gre/modules/AppConstants.jsm", {});
            if (AppConstants.platform == "macosx") {
              // On OS X, the default button always stays marked as such (until
              // the entire prompt blurs).
              defaultButton.setAttribute("default", true);
            } else {
              // On other platforms, the default button is only marked as such
              // when no other button has focus. XUL buttons on not-OSX will
              // react to pressing enter as a command, so you can't trigger the
              // default without tabbing to it or something that isn't a button.
              let focusedDefault = (event.originalTarget == defaultButton);
              let someButtonFocused = event.originalTarget instanceof Ci.nsIDOMXULButtonElement;
              defaultButton.setAttribute("default", focusedDefault || !someButtonFocused);
            }
        </handler>
        <handler event="blur">
            // If focus shifted to somewhere else in the browser, don't make
            // the default button look active.
            let bnum = this.args.defaultButtonNum || 0;
            let button = this.ui["button" + bnum];
            button.setAttribute("default", false);
        </handler>
    </handlers>

  </binding>
</bindings>
