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Diffstat (limited to 'ui/types/message.go')
| -rw-r--r-- | ui/types/message.go | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/ui/types/message.go b/ui/types/message.go deleted file mode 100644 index fa3b6ef..0000000 --- a/ui/types/message.go +++ /dev/null @@ -1,234 +0,0 @@ -// gomuks - A terminal Matrix client written in Go. -// Copyright (C) 2018 Tulir Asokan -// -// This program is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program. If not, see <http://www.gnu.org/licenses/>. - -package types - -import ( - "fmt" - "regexp" - "strings" - - "github.com/gdamore/tcell" - "github.com/mattn/go-runewidth" -) - -// MessageState is an enum to specify if a Message is being sent, failed to send or was successfully sent. -type MessageState int - -// Allowed MessageStates. -const ( - MessageStateSending MessageState = iota - MessageStateDefault - MessageStateFailed -) - -// Message is a wrapper for the content and metadata of a Matrix message intended to be displayed. -type Message struct { - ID string - Type string - Sender string - SenderColor tcell.Color - TextColor tcell.Color - Timestamp string - Date string - Text string - State MessageState - buffer []string - prevBufferWidth int -} - -// NewMessage creates a new Message object with the provided values and the default state. -func NewMessage(id, sender, msgtype, text, timestamp, date string, senderColor tcell.Color) *Message { - return &Message{ - Sender: sender, - Timestamp: timestamp, - Date: date, - SenderColor: senderColor, - TextColor: tcell.ColorDefault, - Type: msgtype, - Text: text, - ID: id, - prevBufferWidth: 0, - State: MessageStateDefault, - } -} - -// CopyTo copies the content of this message to the given message. -func (message *Message) CopyTo(to *Message) { - to.ID = message.ID - to.Type = message.Type - to.Sender = message.Sender - to.SenderColor = message.SenderColor - to.TextColor = message.TextColor - to.Timestamp = message.Timestamp - to.Date = message.Date - to.Text = message.Text - to.State = message.State - to.RecalculateBuffer() -} - -// GetSender gets the string that should be displayed as the sender of this message. -// -// If the message is being sent, the sender is "Sending...". -// If sending has failed, the sender is "Error". -// If the message is an emote, the sender is blank. -// In any other case, the sender is the display name of the user who sent the message. -func (message *Message) GetSender() string { - switch message.State { - case MessageStateSending: - return "Sending..." - case MessageStateFailed: - return "Error" - } - switch message.Type { - case "m.emote": - // Emotes don't show a separate sender, it's included in the buffer. - return "" - default: - return message.Sender - } -} - -func (message *Message) getStateSpecificColor() tcell.Color { - switch message.State { - case MessageStateSending: - return tcell.ColorGray - case MessageStateFailed: - return tcell.ColorRed - case MessageStateDefault: - fallthrough - default: - return tcell.ColorDefault - } -} - -// GetSenderColor returns the color the name of the sender should be shown in. -// -// If the message is being sent, the color is gray. -// If sending has failed, the color is red. -// -// In any other case, the color is whatever is specified in the Message struct. -// Usually that means it is the hash-based color of the sender (see ui/widget/color.go) -func (message *Message) GetSenderColor() (color tcell.Color) { - color = message.getStateSpecificColor() - if color == tcell.ColorDefault { - color = message.SenderColor - } - return -} - -// GetTextColor returns the color the actual content of the message should be shown in. -// -// This returns the same colors as GetSenderColor(), but takes the default color from a different variable. -func (message *Message) GetTextColor() (color tcell.Color) { - color = message.getStateSpecificColor() - if color == tcell.ColorDefault { - color = message.TextColor - } - return -} - -// GetTimestampColor returns the color the timestamp should be shown in. -// -// As with GetSenderColor(), messages being sent and messages that failed to be sent are -// gray and red respectively. -// -// However, other messages are the default color instead of a color stored in the struct. -func (message *Message) GetTimestampColor() tcell.Color { - return message.getStateSpecificColor() -} - -// RecalculateBuffer calculates the buffer again with the previously provided width. -func (message *Message) RecalculateBuffer() { - message.CalculateBuffer(message.prevBufferWidth) -} - -// Buffer returns the computed text buffer. -// -// The buffer contains the text of the message split into lines with a maximum -// width of whatever was provided to CalculateBuffer(). -// -// N.B. This will NOT automatically calculate the buffer if it hasn't been -// calculated already, as that requires the target width. -func (message *Message) Buffer() []string { - return message.buffer -} - -// Height returns the number of rows in the computed buffer (see Buffer()). -func (message *Message) Height() int { - return len(message.buffer) -} - -// GetTimestamp returns the formatted time when the message was sent. -func (message *Message) GetTimestamp() string { - return message.Timestamp -} - -// GetDate returns the formatted date when the message was sent. -func (message *Message) GetDate() string { - return message.Date -} - -// Regular expressions used to split lines when calculating the buffer. -// -// From tview/textview.go -var ( - boundaryPattern = regexp.MustCompile("([[:punct:]]\\s*|\\s+)") - spacePattern = regexp.MustCompile(`\s+`) -) - -// CalculateBuffer generates the internal buffer for this message that consists -// of the text of this message split into lines at most as wide as the width -// parameter. -func (message *Message) CalculateBuffer(width int) { - if width < 2 { - return - } - - message.buffer = []string{} - text := message.Text - if message.Type == "m.emote" { - text = fmt.Sprintf("* %s %s", message.Sender, message.Text) - } - - forcedLinebreaks := strings.Split(text, "\n") - newlines := 0 - for _, str := range forcedLinebreaks { - if len(str) == 0 && newlines < 1 { - message.buffer = append(message.buffer, "") - newlines++ - } else { - newlines = 0 - } - // From tview/textview.go#reindexBuffer() - for len(str) > 0 { - extract := runewidth.Truncate(str, width, "") - if len(extract) < len(str) { - if spaces := spacePattern.FindStringIndex(str[len(extract):]); spaces != nil && spaces[0] == 0 { - extract = str[:len(extract)+spaces[1]] - } - - matches := boundaryPattern.FindAllStringIndex(extract, -1) - if len(matches) > 0 { - extract = extract[:matches[len(matches)-1][1]] - } - } - message.buffer = append(message.buffer, extract) - str = str[len(extract):] - } - } - message.prevBufferWidth = width -} |