Improve import keys password popup

TODO.md

@@ -8,8 +8,6 @@
     - Remove the filled theme
     - Have a default background
 
-  - Use [Animators](https://doc.qt.io/qt-5/qml-qtquick-animator.html)
-    - Choose a better default easing type for animations
   - Sendbox
   - Room Sidepane
     - Hide when window too small
@@ -34,6 +32,7 @@
   - Terrible performance using `QT_QPA_PLATFORM=wayland-egl`, must use `xcb`
 
 - UI
+  - Choose a better default easing type for animations
   - Make invite icon blink if there's no one but ourself in the room,
     but never do it again once the user hovered it long enough to show tooltip
     or clicked on it once 
@@ -42,8 +41,6 @@
   - Adapt UI for small heights
 
   - Popup:
-      - label size
-      - Accept/cancel buttons
     - Transitions
 
   - Restoring UI state:

src/icons/light-thin/ok.svg

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="24"
+   height="24"
+   viewBox="0 0 24 24"
+   version="1.1"
+   id="svg4"
+   sodipodi:docname="invite_accept.svg"
+   inkscape:version="">
+  <metadata
+     id="metadata10">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs8" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="640"
+     inkscape:window-height="480"
+     id="namedview6"
+     showgrid="false"
+     inkscape:zoom="9.8333333"
+     inkscape:cx="-28.271186"
+     inkscape:cy="12"
+     inkscape:current-layer="svg4" />
+  <path
+     d="M9 21.035l-9-8.638 2.791-2.87 6.156 5.874 12.21-12.436 2.843 2.817z"
+     id="path2"
+     style="fill:#0d8967;fill-opacity:1" />
+</svg>

src/python/backend.py

@@ -121,13 +121,21 @@ class Backend:
 
     # General functions
 
-
     @staticmethod
     def hsluv(hue: int, saturation: int, lightness: int) -> List[float]:
         # (0-360, 0-100, 0-100) -> [0-1, 0-1, 0-1]
         return hsluv.hsluv_to_rgb([hue, saturation, lightness])
 
 
+    @staticmethod
+    def check_exported_keys_password(file_path: str, password: str) -> bool:
+        try:
+            nio.crypto.key_export.decrypt_and_read(file_path, password)
+            return True
+        except (FileNotFoundError, ValueError):
+            return False
+
+
     async def load_settings(self) -> tuple:
         from .config_files import Theme
         settings = await self.ui_settings.read()

src/qml/Base/HInterfaceBox.qml

@@ -59,11 +59,15 @@ HRectangle {
             spacing: interfaceBox.verticalSpacing
 
             Layout.fillWidth: true
+            Layout.topMargin:
+                interfaceTitle.visible ? 0 : interfaceBox.verticalSpacing
             Layout.leftMargin: interfaceBox.horizontalSpacing
             Layout.rightMargin: interfaceBox.horizontalSpacing
         }
 
         HRowLayout {
+            visible: buttonModel.length > 0
+
             Repeater {
                 id: interfaceButtonsRepeater
                 model: []
@@ -74,7 +78,9 @@ HRectangle {
                     id: button
                     text: modelData.text
                     icon.name: modelData.iconName || ""
-                    enabled: modelData.enabled && ! button.loading
+                    enabled: (modelData.enabled == undefined ?
+                              true : modelData.enabled) &&
+                             ! button.loading
                     onClicked: buttonCallbacks[modelData.name](button)
 
                     Layout.fillWidth: true

src/qml/Base/HPasswordPopup.qml

@@ -5,48 +5,105 @@ import "../SidePane"
 
 Popup {
     id: popup
-    width: window.width
     anchors.centerIn: Overlay.overlay
     modal: true
+    padding: 0
 
     onOpened: passwordField.forceActiveFocus()
 
+
+    property bool validateWhileTyping: false
+
+    property string acceptedPassword: ""
+    property var passwordValid: null
+    property bool okClicked: false
+
     property alias label: popupLabel
     property alias field: passwordField
-    property string password: ""
+
+
+    function verifyPassword(pass) {
+        // Implement me when using this component
+        return false
+    }
+
+
+    enter: Transition {
+        HNumberAnimation { property: "scale"; from: 0; to: 1; overshoot: 4 }
+    }
+
+    exit: Transition {
+        HNumberAnimation { property: "scale"; to: 0 }
+    }
 
     background: HRectangle {
         color: theme.controls.popup.background
     }
 
-    HColumnLayout {
+    contentItem: HInterfaceBox {
-        width: parent.width
+        id: box
-        spacing: theme.spacing
+        implicitWidth: theme.minimumSupportedWidthPlusSpacing
+        enterButtonTarget: "ok"
+        buttonModel: [
+            { name: "ok", text: qsTr("OK"), iconName: "ok",
+              enabled: passwordField.text &&
+                       (validateWhileTyping ? passwordValid : true) },
+            { name: "cancel", text: qsTr("Cancel"), iconName: "cancel" },
+        ]
+        buttonCallbacks: ({
+            ok: button => {
+                let password   = passwordField.text
+                okClicked      = true
+                button.loading = true
+
+                if (verifyPassword(password)) {
+                    passwordValid          = true
+                    popup.acceptedPassword = password
+                    popup.close()
+                } else {
+                    passwordValid = false
+                }
+
+                button.loading = false
+            },
+            cancel: button => { popup.close() },
+        })
+
 
         HLabel {
             id: popupLabel
             wrapMode: Text.Wrap
 
-            Layout.alignment: Qt.AlignCenter
+            Layout.fillWidth: true
-            Layout.minimumWidth: theme.minimumSupportedWidth
-            Layout.maximumWidth:
-                Math.min(480, window.width - theme.spacing * 2)
         }
 
+        HRowLayout {
+            spacing: box.horizontalSpacing
+
             HTextField {
                 id: passwordField
+                placeholderText: qsTr("Passphrase")
                 echoMode: TextInput.Password
                 focus: true
-            onAccepted: {
+                error: passwordValid === false
-                popup.password = text
+
-                popup.close()
+                onTextChanged: passwordValid =
-            }
+                    validateWhileTyping ? verifyPassword(text) : null
 
-            Layout.alignment: Qt.AlignCenter
                 Layout.fillWidth: true
+            }
 
-            Layout.preferredWidth: popupLabel.width
+            HIcon {
-            Layout.maximumWidth: popupLabel.width
+                svgName: passwordValid ? "ok" : "cancel"
+                visible: Layout.preferredWidth > 0
+
+                Layout.preferredWidth:
+                    passwordValid == null ||
+                    (validateWhileTyping && ! okClicked && ! passwordValid) ?
+                    0 :implicitWidth
+
+                Behavior on Layout.preferredWidth { HNumberAnimation {} }
+            }
         }
     }
 }

src/qml/Base/HTextField.qml

@@ -8,9 +8,12 @@ TextField {
 
     readonly property QtObject _tf: theme.controls.textField
 
+    property bool error: false
+
     property bool bordered: true
     property color backgroundColor: _tf.background
     property color borderColor: _tf.border
+    property color errorBorder: _tf.errorBorder
     property color focusedBackgroundColor: _tf.focusedBackground
     property color focusedBorderColor: _tf.focusedBorder
     property alias radius: textFieldBackground.radius
@@ -20,7 +23,8 @@ TextField {
     background: Rectangle {
         id: textFieldBackground
         color: field.activeFocus ? focusedBackgroundColor : backgroundColor
-        border.color: field.activeFocus ? focusedBorderColor : borderColor
+        border.color: error ? errorBorder :
+                      field.activeFocus ? focusedBorderColor : borderColor
         border.width: bordered ? theme.controls.textField.borderWidth : 0
 
         Behavior on color { HColorAnimation { factor: 0.25 } }

src/qml/Pages/EditAccount/Encryption.qml

@@ -63,14 +63,16 @@ HColumnLayout {
     HPasswordPopup {
         property url file: ""
 
+        function verifyPassword(pass) {
+            return py.callSync(
+                "check_exported_keys_password", [file.toString(), pass]
+            )
+        }
+
         id: importPasswordPopup
         label.text: qsTr(
-            "Please enter the passphrase that was used to protect this " +
+            "Please enter the passphrase that was used to protect this file:"
-            "file.\n\n" +
-            "The import can take a few minutes. " +
-            "You can leave the account settings page while it is running. " +
-            "Messages may not be sent or received until the operation is done."
         )
-        onPasswordChanged: importKeys(file, password)
+        onAcceptedPasswordChanged: importKeys(file, password)
     }
 }

src/themes/Default.qpl

@@ -133,6 +133,7 @@ controls:
         int borderWidth:     1
         color border:        "transparent"
         color focusedBorder: colors.strongAccentBackground
+        color errorBorder:   colors.errorText
 
         color text:        colors.text
         color focusedText: colors.text