Guda-ClassicAPI/UI/MailboxFrame.xml

<Ui xmlns="http://www.blizzard.com/wow/ui/"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.blizzard.com/wow/ui/">

    <!-- Mailbox Frame -->
    <Frame name="Guda_MailboxFrame" toplevel="true" movable="true" enableMouse="true" hidden="true" parent="UIParent">
        <Size>
            <AbsDimension x="420" y="540"/>
        </Size>

        <Anchors>
            <Anchor point="CENTER" relativePoint="CENTER" relativeTo="UIParent">
                <Offset>
                    <AbsDimension x="0" y="0"/>
                </Offset>
            </Anchor>
        </Anchors>

        <Backdrop bgFile="Interface\ChatFrame\ChatFrameBackground" edgeFile="Interface\DialogFrame\UI-DialogBox-Border" tile="true">
            <BackgroundInsets>
                <AbsInset left="11" right="12" top="12" bottom="11"/>
            </BackgroundInsets>
            <TileSize>
                <AbsValue val="16"/>
            </TileSize>
            <EdgeSize>
                <AbsValue val="32"/>
            </EdgeSize>
        </Backdrop>

        <Layers>
            <!-- Title at top -->
            <Layer level="ARTWORK">
                <FontString name="$parent_Title" inherits="GameFontNormalLarge">
                    <Anchors>
                        <Anchor point="TOP">
                            <Offset>
                                <AbsDimension x="0" y="-12"/>
                            </Offset>
                        </Anchor>
                    </Anchors>
                </FontString>
            </Layer>
        </Layers>

        <Frames>
            <!-- Close Button -->
            <Button name="$parent_CloseButton" inherits="UIPanelCloseButton">
                <Anchors>
                    <Anchor point="TOPRIGHT">
                        <Offset>
                            <AbsDimension x="-16" y="-10"/>
                        </Offset>
                    </Anchor>
                </Anchors>
                <Scripts>
                    <OnClick>
                        Guda_MailboxFrame:Hide()
                    </OnClick>
                </Scripts>
            </Button>

            <!-- Search Bar -->
            <Frame name="$parent_SearchBar" inherits="OptionFrameBoxTemplate">
                <Size>
                    <AbsDimension x="250" y="32"/>
                </Size>
                <Anchors>
                    <Anchor point="TOPLEFT">
                        <Offset>
                            <AbsDimension x="20" y="-35"/>
                        </Offset>
                    </Anchor>
                </Anchors>
                <Frames>
                    <EditBox name="$parent_SearchBox" autoFocus="false" inherits="InputBoxTemplate">
                        <Size>
                            <AbsDimension x="240" y="20"/>
                        </Size>
                        <Anchors>
                            <Anchor point="LEFT">
                                <Offset>
                                    <AbsDimension x="5" y="0"/>
                                </Offset>
                            </Anchor>
                        </Anchors>
                        <Scripts>
                            <OnTextChanged>
                                Guda_MailboxFrame_OnSearchTextChanged()
                            </OnTextChanged>
                            <OnEscapePressed>
                                this:ClearFocus()
                            </OnEscapePressed>
                            <OnEnterPressed>
                                this:ClearFocus()
                            </OnEnterPressed>
                            <OnEditFocusGained>
                                if this:GetText() == "Search mailbox..." then
                                    this:SetText("")
                                    this:SetTextColor(1, 1, 1, 1)
                                end
                                if Guda_MailboxClickCatcher then
                                    Guda_MailboxClickCatcher:Show()
                                end
                            </OnEditFocusGained>
                            <OnEditFocusLost>
                                if this:GetText() == "" then
                                    this:SetText("Search mailbox...")
                                    this:SetTextColor(0.5, 0.5, 0.5, 1)
                                end
                                if Guda_MailboxClickCatcher then
                                    Guda_MailboxClickCatcher:Hide()
                                end
                            </OnEditFocusLost>
                        </Scripts>
                    </EditBox>
                </Frames>
                <Scripts>
                    <OnLoad>
                        this:SetBackdropBorderColor(0.4, 0.4, 0.4)
                        this:SetBackdropColor(0.15, 0.15, 0.15, 0.5)
                    </OnLoad>
                </Scripts>
            </Frame>

            <!-- Character Selection Button -->
            <Button name="$parent_CharacterButton">
                <Size>
                    <AbsDimension x="24" y="24"/>
                </Size>
                <Anchors>
                    <Anchor point="TOPRIGHT">
                        <Offset>
                            <AbsDimension x="-20" y="-40"/>
                        </Offset>
                    </Anchor>
                </Anchors>
                <Layers>
                    <Layer level="ARTWORK">
                        <Texture name="$parent_Icon">
                            <Size>
                                <AbsDimension x="20" y="20"/>
                            </Size>
                            <Anchors>
                                <Anchor point="CENTER"/>
                            </Anchors>
                            <Color r="0.8" g="0.8" b="0.8"/>
                        </Texture>
                    </Layer>
                </Layers>
                <Scripts>
                    <OnLoad>
                        local icon = getglobal(this:GetName().."_Icon")
                        if icon then
                            icon:SetTexture("Interface\\AddOns\\Guda\\Assets\\All_Characters")
                        end
                    </OnLoad>
                    <OnClick>
                        Guda_MailboxFrame_ShowCharacterMenu()
                    </OnClick>
                    <OnEnter>
                        GameTooltip:SetOwner(this, "ANCHOR_TOP")
                        GameTooltip:SetText("Switch Character")
                        GameTooltip:Show()
                    </OnEnter>
                    <OnLeave>
                        GameTooltip:Hide()
                    </OnLeave>
                </Scripts>
            </Button>

            <!-- Scroll Frame for Items -->
            <ScrollFrame name="$parent_ScrollFrame" inherits="UIPanelScrollFrameTemplate">
                <Size>
                    <AbsDimension x="360" y="420"/>
                </Size>
                <Anchors>
                    <Anchor point="TOPLEFT">
                        <Offset>
                            <AbsDimension x="20" y="-75"/>
                        </Offset>
                    </Anchor>
                </Anchors>
                <ScrollChild>
                    <Frame name="Guda_MailboxFrame_ItemContainer">
                        <Size>
                            <AbsDimension x="360" y="420"/>
                        </Size>
                        <Anchors>
                            <Anchor point="TOPLEFT"/>
                        </Anchors>
                    </Frame>
                </ScrollChild>
            </ScrollFrame>

            <!-- Footer for stats/info -->
            <Frame name="$parent_Footer">
                <Size>
                    <AbsDimension x="380" y="20"/>
                </Size>
                <Anchors>
                    <Anchor point="BOTTOMLEFT">
                        <Offset>
                            <AbsDimension x="20" y="15"/>
                        </Offset>
                    </Anchor>
                </Anchors>
                <Layers>
                    <Layer level="ARTWORK">
                        <FontString name="$parent_Text" inherits="GameFontHighlightSmall" justifyH="LEFT">
                            <Anchors>
                                <Anchor point="LEFT"/>
                            </Anchors>
                        </FontString>
                    </Layer>
                </Layers>
            </Frame>
            
            <Frame name="$parent_MoneyFrame" inherits="SmallMoneyFrameTemplate">
                <Anchors>
                    <Anchor point="BOTTOMRIGHT">
                        <Offset>
                            <AbsDimension x="-15" y="10"/>
                        </Offset>
                    </Anchor>
                </Anchors>
            </Frame>
        </Frames>

        <Scripts>
            <OnLoad>
                Guda_MailboxFrame_OnLoad(this)
            </OnLoad>
            <OnShow>
                Guda_MailboxFrame_OnShow(this)
            </OnShow>
            <OnMouseDown>
                this:StartMoving()
            </OnMouseDown>
            <OnMouseUp>
                this:StopMovingOrSizing()
            </OnMouseUp>
        </Scripts>
    </Frame>
</Ui>